16001122056 has 32 divisors (see below), whose sum is σ = 40006016640. Its totient is φ = 5333279168.

The previous prime is 16001122021. The next prime is 16001122063. The reversal of 16001122056 is 65022110061.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 456550 + ... + 490346.

It is an arithmetic number, because the mean of its divisors is an integer number (1250188020).

Almost surely, 2^16001122056 is an apocalyptic number.

It is an amenable number.

16001122056 is an abundant number, since it is smaller than the sum of its proper divisors (24004894584).

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

16001122056 is a wasteful number, since it uses less digits than its factorization.

16001122056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53533 (or 53529 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The spelling of 16001122056 in words is "sixteen billion, one million, one hundred twenty-two thousand, fifty-six".