16139854764 has 72 divisors (see below), whose sum is σ = 46041624720. Its totient is φ = 4722211200.

The previous prime is 16139854721. The next prime is 16139854769. The reversal of 16139854764 is 46745893161.

16139854764 is a `hidden beast` number, since 1 + 6 + 1 + 3 + 98 + 547 + 6 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 16139854764.

It is not an unprimeable number, because it can be changed into a prime (16139854769) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 691227 + ... + 714194.

It is an arithmetic number, because the mean of its divisors is an integer number (639467010).

Almost surely, 2^16139854764 is an apocalyptic number.

It is an amenable number.

16139854764 is an abundant number, since it is smaller than the sum of its proper divisors (29901769956).

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

16139854764 is a wasteful number, since it uses less digits than its factorization.

16139854764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1405471 (or 1405466 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 54.

The spelling of 16139854764 in words is "sixteen billion, one hundred thirty-nine million, eight hundred fifty-four thousand, seven hundred sixty-four".