15656061008 has 40 divisors (see below), whose sum is σ = 35603947392. Its totient is φ = 6528394368.

The previous prime is 15656060999. The next prime is 15656061013. The reversal of 15656061008 is 80016065651.

It is a super-2 number, since 2×15656061008² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1884860 + ... + 1893147.

Almost surely, 2^15656061008 is an apocalyptic number.

It is an amenable number.

15656061008 is an abundant number, since it is smaller than the sum of its proper divisors (19947886384).

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

15656061008 is a wasteful number, since it uses less digits than its factorization.

15656061008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3778059 (or 3778053 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 38.

The spelling of 15656061008 in words is "fifteen billion, six hundred fifty-six million, sixty-one thousand, eight".