16156616808 has 32 divisors (see below), whose sum is σ = 42767516160. Its totient is φ = 5068742400.

The previous prime is 16156616783. The next prime is 16156616821. The reversal of 16156616808 is 80861665161.

It is a super-2 number, since 2×16156616808² (a number of 21 digits) contains 22 as substring.

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, 19799368 + ... + 19800183.

It is an arithmetic number, because the mean of its divisors is an integer number (1336484880).

Almost surely, 2^16156616808 is an apocalyptic number.

It is an amenable number.

16156616808 is an abundant number, since it is smaller than the sum of its proper divisors (26610899352).

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

16156616808 is a wasteful number, since it uses less digits than its factorization.

16156616808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39599577 (or 39599573 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 48.

The spelling of 16156616808 in words is "sixteen billion, one hundred fifty-six million, six hundred sixteen thousand, eight hundred eight".