16639574382 has 24 divisors (see below), whose sum is σ = 36068101680. Its totient is φ = 5544110880.

The previous prime is 16639574363. The next prime is 16639574429. The reversal of 16639574382 is 28347593661.

16639574382 is a `hidden beast` number, since 1 + 6 + 6 + 39 + 574 + 38 + 2 = 666.

It is a super-2 number, since 2×16639574382² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 158407 + ... + 241602.

It is an arithmetic number, because the mean of its divisors is an integer number (1502837570).

Almost surely, 2^16639574382 is an apocalyptic number.

16639574382 is an abundant number, since it is smaller than the sum of its proper divisors (19428527298).

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

16639574382 is a wasteful number, since it uses less digits than its factorization.

16639574382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402328 (or 402325 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 54.

The spelling of 16639574382 in words is "sixteen billion, six hundred thirty-nine million, five hundred seventy-four thousand, three hundred eighty-two".