20953482512 has 20 divisors (see below), whose sum is σ = 41169168576. Its totient is φ = 10329180960.

The previous prime is 20953482499. The next prime is 20953482559. The reversal of 20953482512 is 21528435902.

It is a self number, because there is not a number n which added to its sum of digits gives 20953482512.

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, 9221348 + ... + 9223619.

Almost surely, 2^20953482512 is an apocalyptic number.

It is an amenable number.

20953482512 is a deficient number, since it is larger than the sum of its proper divisors (20215686064).

20953482512 is a wasteful number, since it uses less digits than its factorization.

20953482512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18445046 (or 18445040 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 41.

The spelling of 20953482512 in words is "twenty billion, nine hundred fifty-three million, four hundred eighty-two thousand, five hundred twelve".