20881600632 has 64 divisors (see below), whose sum is σ = 58308249600. Its totient is φ = 6924077280.

The previous prime is 20881600613. The next prime is 20881600637. The reversal of 20881600632 is 23600618802.

20881600632 is a `hidden beast` number, since 2 + 0 + 8 + 8 + 16 + 0 + 0 + 632 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20881600637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 211818 + ... + 294329.

It is an arithmetic number, because the mean of its divisors is an integer number (911066400).

Almost surely, 2^20881600632 is an apocalyptic number.

It is an amenable number.

20881600632 is an abundant number, since it is smaller than the sum of its proper divisors (37426648968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20881600632 is a wasteful number, since it uses less digits than its factorization.

20881600632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506353 (or 506343 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The spelling of 20881600632 in words is "twenty billion, eight hundred eighty-one million, six hundred thousand, six hundred thirty-two".