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56606061680 = 2457268737619
BaseRepresentation
bin110100101101111110…
…111111010001110000
312102002222021212121222
4310231332333101300
51411412122433210
642000544204212
74042515404540
oct645576772160
9172088255558
1056606061680
1122008711a63
12ab79309668
13545157746c
142a4dc23320
1517147e6655
hexd2dfbf470

56606061680 has 80 divisors (see below), whose sum is σ = 150470369280. Its totient is φ = 19400054016.

The previous prime is 56606061653. The next prime is 56606061689. The reversal of 56606061680 is 8616060665.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-3 number, since 3×566060616803 (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56606061689) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1485911 + ... + 1523529.

It is an arithmetic number, because the mean of its divisors is an integer number (1880879616).

Almost surely, 256606061680 is an apocalyptic number.

It is an amenable number.

56606061680 is an abundant number, since it is smaller than the sum of its proper divisors (93864307600).

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

56606061680 is a wasteful number, since it uses less digits than its factorization.

56606061680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40326 (or 40320 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 44.

The spelling of 56606061680 in words is "fifty-six billion, six hundred six million, sixty-one thousand, six hundred eighty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 35 40 56 70 80 112 140 280 560 2687 5374 10748 13435 18809 21496 26870 37618 37619 42992 53740 75236 75238 94045 107480 150472 150476 188090 188095 214960 263333 300944 300952 376180 376190 526666 601904 752360 752380 1053332 1316665 1504720 1504760 2106664 2633330 3009520 4213328 5266660 10533320 21066640 101082253 202164506 404329012 505411265 707575771 808658024 1010822530 1415151542 1617316048 2021645060 2830303084 3537878855 4043290120 5660606168 7075757710 8086580240 11321212336 14151515420 28303030840 56606061680