21072559950596 has 24 divisors (see below), whose sum is σ = 45976494438336. Its totient is φ = 8210088292320.

The previous prime is 21072559950511. The next prime is 21072559950649. The reversal of 21072559950596 is 69505995527012.

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, 34208700911 + ... + 34208701526.

It is an arithmetic number, because the mean of its divisors is an integer number (1915687268264).

Almost surely, 2^{21072559950596} is an apocalyptic number.

It is an amenable number.

21072559950596 is an abundant number, since it is smaller than the sum of its proper divisors (24903934487740).

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

21072559950596 is a wasteful number, since it uses less digits than its factorization.

21072559950596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68417402459 (or 68417402457 counting only the distinct ones).

The product of its (nonzero) digits is 76545000, while the sum is 65.

The spelling of 21072559950596 in words is "twenty-one trillion, seventy-two billion, five hundred fifty-nine million, nine hundred fifty thousand, five hundred ninety-six".