21339056360 has 64 divisors (see below), whose sum is σ = 48482280000. Its totient is φ = 8452454400.

The previous prime is 21339056317. The next prime is 21339056371. The reversal of 21339056360 is 6365093312.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2610680 + ... + 2618840.

It is an arithmetic number, because the mean of its divisors is an integer number (757535625).

Almost surely, 2^21339056360 is an apocalyptic number.

21339056360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21339056360 is an abundant number, since it is smaller than the sum of its proper divisors (27143223640).

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

21339056360 is a wasteful number, since it uses less digits than its factorization.

21339056360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8802 (or 8798 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 38.

The spelling of 21339056360 in words is "twenty-one billion, three hundred thirty-nine million, fifty-six thousand, three hundred sixty".