21670294034032 has 40 divisors (see below), whose sum is σ = 47984492653056. Its totient is φ = 9287216584896.

The previous prime is 21670294034029. The next prime is 21670294034047. The reversal of 21670294034032 is 23043049207612.

It is a self number, because there is not a number n which added to its sum of digits gives 21670294034032.

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, 24594933 + ... + 25460779.

Almost surely, 2^{21670294034032} is an apocalyptic number.

It is an amenable number.

21670294034032 is an abundant number, since it is smaller than the sum of its proper divisors (26314198619024).

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

21670294034032 is a wasteful number, since it uses less digits than its factorization.

21670294034032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1089325 (or 1089319 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 43.

The spelling of 21670294034032 in words is "twenty-one trillion, six hundred seventy billion, two hundred ninety-four million, thirty-four thousand, thirty-two".