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1066866908500 = 225313939073929
BaseRepresentation
bin11111000011001100011…
…10010001110101010100
310202222202210022022210201
433201212032101311110
5114434420412033000
62134040100230244
7140035646045101
oct17414616216524
93688683268721
101066866908500
11381501613a48
1215292369b384
13797b359cca3
14398caccdaa8
151cb41c9396a
hexf866391d54

1066866908500 has 96 divisors (see below), whose sum is σ = 2347998307200. Its totient is φ = 423460396800.

The previous prime is 1066866908479. The next prime is 1066866908501. The reversal of 1066866908500 is 58096686601.

It is a happy number.

1066866908500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×10668669085002 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066866908501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 271534536 + ... + 271538464.

It is an arithmetic number, because the mean of its divisors is an integer number (24458315700).

Almost surely, 21066866908500 is an apocalyptic number.

1066866908500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1066866908500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1173999153600).

1066866908500 is an abundant number, since it is smaller than the sum of its proper divisors (1281131398700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1066866908500 is a wasteful number, since it uses less digits than its factorization.

1066866908500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7994 (or 7982 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 55.

The spelling of 1066866908500 in words is "one trillion, sixty-six billion, eight hundred sixty-six million, nine hundred eight thousand, five hundred".

Divisors: 1 2 4 5 10 20 25 50 100 125 139 250 278 500 556 695 1390 2780 3475 3907 3929 6950 7814 7858 13900 15628 15716 17375 19535 19645 34750 39070 39290 69500 78140 78580 97675 98225 195350 196450 390700 392900 488375 491125 543073 546131 976750 982250 1086146 1092262 1953500 1964500 2172292 2184524 2715365 2730655 5430730 5461310 10861460 10922620 13576825 13653275 15350603 27153650 27306550 30701206 54307300 54613100 61402412 67884125 68266375 76753015 135768250 136532750 153506030 271536500 273065500 307012060 383765075 767530150 1535060300 1918825375 2133733817 3837650750 4267467634 7675301500 8534935268 10668669085 21337338170 42674676340 53343345425 106686690850 213373381700 266716727125 533433454250 1066866908500