21233640412032 has 64 divisors (see below), whose sum is σ = 59719613677200. Its totient is φ = 6661534244864.

The previous prime is 21233640412027. The next prime is 21233640412057. The reversal of 21233640412032 is 23021404633212.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 21233640411984 and 21233640412002.

It is a congruent number.

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, 1626344607 + ... + 1626357662.

Almost surely, 2^{21233640412032} is an apocalyptic number.

It is an amenable number.

21233640412032 is an abundant number, since it is smaller than the sum of its proper divisors (38485973265168).

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

21233640412032 is a wasteful number, since it uses less digits than its factorization.

21233640412032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3252702303 (or 3252702291 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 33.

The spelling of 21233640412032 in words is "twenty-one trillion, two hundred thirty-three billion, six hundred forty million, four hundred twelve thousand, thirty-two".