20653724275 has 12 divisors (see below), whose sum is σ = 25971333264. Its totient is φ = 16290260000.

The previous prime is 20653724243. The next prime is 20653724297. The reversal of 20653724275 is 57242735602.

It is not a de Polignac number, because 20653724275 - 2⁵ = 20653724243 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5816176 + ... + 5819725.

It is an arithmetic number, because the mean of its divisors is an integer number (2164277772).

Almost surely, 2^20653724275 is an apocalyptic number.

20653724275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20653724275 is a deficient number, since it is larger than the sum of its proper divisors (5317608989).

20653724275 is a wasteful number, since it uses less digits than its factorization.

20653724275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11635982 (or 11635977 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 43.

The spelling of 20653724275 in words is "twenty billion, six hundred fifty-three million, seven hundred twenty-four thousand, two hundred seventy-five".