20251146140564 has 24 divisors (see below), whose sum is σ = 35458105200000. Its totient is φ = 10120260276000.

The previous prime is 20251146140521. The next prime is 20251146140569. The reversal of 20251146140564 is 46504164115202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20251146140569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62004689 + ... + 62330439.

It is an arithmetic number, because the mean of its divisors is an integer number (1477421050000).

Almost surely, 2^{20251146140564} is an apocalyptic number.

It is an amenable number.

20251146140564 is a deficient number, since it is larger than the sum of its proper divisors (15206959059436).

20251146140564 is a wasteful number, since it uses less digits than its factorization.

20251146140564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333863 (or 333861 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 41.

The spelling of 20251146140564 in words is "twenty trillion, two hundred fifty-one billion, one hundred forty-six million, one hundred forty thousand, five hundred sixty-four".