11638479532168 has 32 divisors (see below), whose sum is σ = 22192385846400. Its totient is φ = 5720513260608.

The previous prime is 11638479532157. The next prime is 11638479532171. The reversal of 11638479532168 is 86123597483611.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34274305 + ... + 34612207.

It is an arithmetic number, because the mean of its divisors is an integer number (693512057700).

Almost surely, 2^{11638479532168} is an apocalyptic number.

It is an amenable number.

11638479532168 is a deficient number, since it is larger than the sum of its proper divisors (10553906314232).

11638479532168 is a wasteful number, since it uses less digits than its factorization.

11638479532168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410941 (or 410937 counting only the distinct ones).

The product of its digits is 52254720, while the sum is 64.

The spelling of 11638479532168 in words is "eleven trillion, six hundred thirty-eight billion, four hundred seventy-nine million, five hundred thirty-two thousand, one hundred sixty-eight".