16165882320 has 80 divisors (see below), whose sum is σ = 57273417600. Its totient is φ = 3695058432.

The previous prime is 16165882283. The next prime is 16165882363. The reversal of 16165882320 is 2328856161.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×16165882320² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4809595 + ... + 4812954.

It is an arithmetic number, because the mean of its divisors is an integer number (715917720).

Almost surely, 2^16165882320 is an apocalyptic number.

16165882320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16165882320 is an abundant number, since it is smaller than the sum of its proper divisors (41107535280).

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

16165882320 is a wasteful number, since it uses less digits than its factorization.

16165882320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9622572 (or 9622566 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 42.

The spelling of 16165882320 in words is "sixteen billion, one hundred sixty-five million, eight hundred eighty-two thousand, three hundred twenty".