20655506232 has 96 divisors (see below), whose sum is σ = 57512033280. Its totient is φ = 6693883200.

The previous prime is 20655506219. The next prime is 20655506281. The reversal of 20655506232 is 23260555602.

20655506232 is a `hidden beast` number, since 20 + 6 + 5 + 5 + 5 + 0 + 623 + 2 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 490773 + ... + 531195.

It is an arithmetic number, because the mean of its divisors is an integer number (599083680).

Almost surely, 2^20655506232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20655506232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28756016640).

20655506232 is an abundant number, since it is smaller than the sum of its proper divisors (36856527048).

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

20655506232 is a wasteful number, since it uses less digits than its factorization.

20655506232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40633 (or 40626 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

The spelling of 20655506232 in words is "twenty billion, six hundred fifty-five million, five hundred six thousand, two hundred thirty-two".