20651160525 has 12 divisors (see below), whose sum is σ = 34143252192. Its totient is φ = 11013952240.

The previous prime is 20651160493. The next prime is 20651160527. The reversal of 20651160525 is 52506115602.

It is not a de Polignac number, because 20651160525 - 2⁵ = 20651160493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20651160527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 137674329 + ... + 137674478.

It is an arithmetic number, because the mean of its divisors is an integer number (2845271016).

Almost surely, 2^20651160525 is an apocalyptic number.

20651160525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20651160525 is a deficient number, since it is larger than the sum of its proper divisors (13492091667).

20651160525 is a wasteful number, since it uses less digits than its factorization.

20651160525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275348820 (or 275348815 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 33.

The spelling of 20651160525 in words is "twenty billion, six hundred fifty-one million, one hundred sixty thousand, five hundred twenty-five".