16155789504 has 56 divisors (see below), whose sum is σ = 42756021168. Its totient is φ = 5383941120.

The previous prime is 16155789497. The next prime is 16155789521. The reversal of 16155789504 is 40598755161.

It is a super-2 number, since 2×16155789504² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1064014 + ... + 1079090.

It is an arithmetic number, because the mean of its divisors is an integer number (763500378).

Almost surely, 2^16155789504 is an apocalyptic number.

It is an amenable number.

16155789504 is an abundant number, since it is smaller than the sum of its proper divisors (26600231664).

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

16155789504 is a wasteful number, since it uses less digits than its factorization.

16155789504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20673 (or 20663 counting only the distinct ones).

The product of its (nonzero) digits is 1512000, while the sum is 51.

The spelling of 16155789504 in words is "sixteen billion, one hundred fifty-five million, seven hundred eighty-nine thousand, five hundred four".