20554632032 has 36 divisors (see below), whose sum is σ = 44480189628. Its totient is φ = 9343012800.

The previous prime is 20554632001. The next prime is 20554632037. The reversal of 20554632032 is 23023645502.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 20554632032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20554632037) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2650394 + ... + 2658137.

It is an arithmetic number, because the mean of its divisors is an integer number (1235560823).

Almost surely, 2^20554632032 is an apocalyptic number.

20554632032 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20554632032 is an abundant number, since it is smaller than the sum of its proper divisors (23925557596).

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

20554632032 is a wasteful number, since it uses less digits than its factorization.

20554632032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5308563 (or 5308544 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 32.

The spelling of 20554632032 in words is "twenty billion, five hundred fifty-four million, six hundred thirty-two thousand, thirty-two".