20251637420632 has 16 divisors (see below), whose sum is σ = 39196717588800. Its totient is φ = 9799179396960.

The previous prime is 20251637420629. The next prime is 20251637420659. The reversal of 20251637420632 is 23602473615202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40829913907 + ... + 40829914402.

It is an arithmetic number, because the mean of its divisors is an integer number (2449794849300).

Almost surely, 2^{20251637420632} is an apocalyptic number.

It is an amenable number.

20251637420632 is a deficient number, since it is larger than the sum of its proper divisors (18945080168168).

20251637420632 is a wasteful number, since it uses less digits than its factorization.

20251637420632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81659828346 (or 81659828342 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 43.

The spelling of 20251637420632 in words is "twenty trillion, two hundred fifty-one billion, six hundred thirty-seven million, four hundred twenty thousand, six hundred thirty-two".