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1016197869888 = 263331131179809
BaseRepresentation
bin11101100100110100001…
…11001111000101000000
310121010222120120110202000
432302122013033011000
5113122133123314023
62054500155024000
7133263221242335
oct16623207170500
93533876513660
101016197869888
11361a70229323
12144b4273b000
1374a9a041636
14372817a498c
151b6787e5243
hexec9a1cf140

1016197869888 has 448 divisors, whose sum is σ = 3128564736000. Its totient is φ = 323086233600.

The previous prime is 1016197869887. The next prime is 1016197869893. The reversal of 1016197869888 is 8889687916101.

It is a super-2 number, since 2×10161978698882 (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1016197869887) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1256115628 + ... + 1256116436.

Almost surely, 21016197869888 is an apocalyptic number.

1016197869888 is a gapful number since it is divisible by the number (18) 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 1016197869888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1564282368000).

1016197869888 is an abundant number, since it is smaller than the sum of its proper divisors (2112366866112).

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

1016197869888 is a wasteful number, since it uses less digits than its factorization.

1016197869888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1171 (or 1155 counting only the distinct ones).

The product of its (nonzero) digits is 83607552, while the sum is 72.

The spelling of 1016197869888 in words is "one trillion, sixteen billion, one hundred ninety-seven million, eight hundred sixty-nine thousand, eight hundred eighty-eight".