20565360364 has 12 divisors (see below), whose sum is σ = 36015450688. Its totient is φ = 10275231600.

The previous prime is 20565360331. The next prime is 20565360371. The reversal of 20565360364 is 46306356502.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1855932 + ... + 1866979.

Almost surely, 2^20565360364 is an apocalyptic number.

It is an amenable number.

20565360364 is a deficient number, since it is larger than the sum of its proper divisors (15450090324).

20565360364 is a wasteful number, since it uses less digits than its factorization.

20565360364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3724296 (or 3724294 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 40.

The spelling of 20565360364 in words is "twenty billion, five hundred sixty-five million, three hundred sixty thousand, three hundred sixty-four".