20653111164475 has 6 divisors (see below), whose sum is σ = 25609857843980. Its totient is φ = 16522488931560.

The previous prime is 20653111164467. The next prime is 20653111164481. The reversal of 20653111164475 is 57446111135602.

It is not a de Polignac number, because 20653111164475 - 2³ = 20653111164467 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 413062223265 + ... + 413062223314.

Almost surely, 2^{20653111164475} is an apocalyptic number.

20653111164475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20653111164475 is a deficient number, since it is larger than the sum of its proper divisors (4956746679505).

20653111164475 is an equidigital number, since it uses as much as digits as its factorization.

20653111164475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 826124446589 (or 826124446584 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 46.

The spelling of 20653111164475 in words is "twenty trillion, six hundred fifty-three billion, one hundred eleven million, one hundred sixty-four thousand, four hundred seventy-five".