21600710564 has 24 divisors (see below), whose sum is σ = 38300626560. Its totient is φ = 10657823904.

The previous prime is 21600710543. The next prime is 21600710587. The reversal of 21600710564 is 46501700612.

It is a self number, because there is not a number n which added to its sum of digits gives 21600710564.

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, 593147 + ... + 628509.

It is an arithmetic number, because the mean of its divisors is an integer number (1595859440).

Almost surely, 2^21600710564 is an apocalyptic number.

It is an amenable number.

21600710564 is a deficient number, since it is larger than the sum of its proper divisors (16699915996).

21600710564 is a wasteful number, since it uses less digits than its factorization.

21600710564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37379 (or 37377 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The spelling of 21600710564 in words is "twenty-one billion, six hundred million, seven hundred ten thousand, five hundred sixty-four".