21606492809592 has 96 divisors (see below), whose sum is σ = 58732526062080. Its totient is φ = 7175713224960.

The previous prime is 21606492809579. The next prime is 21606492809663. The reversal of 21606492809592 is 29590829460612.

21606492809592 is a `hidden beast` number, since 2 + 1 + 60 + 6 + 492 + 80 + 9 + 5 + 9 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 507972358 + ... + 508014890.

It is an arithmetic number, because the mean of its divisors is an integer number (611797146480).

Almost surely, 2^{21606492809592} is an apocalyptic number.

It is an amenable number.

21606492809592 is an abundant number, since it is smaller than the sum of its proper divisors (37126033252488).

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

21606492809592 is a wasteful number, since it uses less digits than its factorization.

21606492809592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68293 (or 68286 counting only the distinct ones).

The product of its (nonzero) digits is 33592320, while the sum is 63.

The spelling of 21606492809592 in words is "twenty-one trillion, six hundred six billion, four hundred ninety-two million, eight hundred nine thousand, five hundred ninety-two".