16764079920 has 240 divisors, whose sum is σ = 63082748160. Its totient is φ = 3665131008.

The previous prime is 16764079907. The next prime is 16764079949. The reversal of 16764079920 is 2997046761.

It is a tau number, because it is divible by the number of its divisors (240).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 239491 + ... + 301469.

It is an arithmetic number, because the mean of its divisors is an integer number (262844784).

Almost surely, 2^16764079920 is an apocalyptic number.

16764079920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16764079920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31541374080).

16764079920 is an abundant number, since it is smaller than the sum of its proper divisors (46318668240).

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

16764079920 is a wasteful number, since it uses less digits than its factorization.

16764079920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62032 (or 62019 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 51.

The spelling of 16764079920 in words is "sixteen billion, seven hundred sixty-four million, seventy-nine thousand, nine hundred twenty".