20250237663651 has 64 divisors (see below), whose sum is σ = 29931761074176. Its totient is φ = 12120813734400.

The previous prime is 20250237663631. The next prime is 20250237663661. The reversal of 20250237663651 is 15636673205202.

It is not a de Polignac number, because 20250237663651 - 2⁵ = 20250237663619 is a prime.

It is a super-2 number, since 2×20250237663651² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20250237663651.

It is not an unprimeable number, because it can be changed into a prime (20250237663631) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 813021540 + ... + 813046446.

It is an arithmetic number, because the mean of its divisors is an integer number (467683766784).

Almost surely, 2^{20250237663651} is an apocalyptic number.

20250237663651 is a deficient number, since it is larger than the sum of its proper divisors (9681523410525).

20250237663651 is a wasteful number, since it uses less digits than its factorization.

20250237663651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32272.

The product of its (nonzero) digits is 2721600, while the sum is 48.

The spelling of 20250237663651 in words is "twenty trillion, two hundred fifty billion, two hundred thirty-seven million, six hundred sixty-three thousand, six hundred fifty-one".