16155321164 has 48 divisors (see below), whose sum is σ = 29698099200. Its totient is φ = 7675035456.

The previous prime is 16155321163. The next prime is 16155321167. The reversal of 16155321164 is 46112355161.

It is not an unprimeable number, because it can be changed into a prime (16155321163) 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, 10863629 + ... + 10865115.

It is an arithmetic number, because the mean of its divisors is an integer number (618710400).

Almost surely, 2^16155321164 is an apocalyptic number.

It is an amenable number.

16155321164 is a deficient number, since it is larger than the sum of its proper divisors (13542778036).

16155321164 is a wasteful number, since it uses less digits than its factorization.

16155321164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2222 (or 2220 counting only the distinct ones).

The product of its digits is 21600, while the sum is 35.

The spelling of 16155321164 in words is "sixteen billion, one hundred fifty-five million, three hundred twenty-one thousand, one hundred sixty-four".