20356512336 has 60 divisors (see below), whose sum is σ = 57019921920. Its totient is φ = 6779553600.

The previous prime is 20356512307. The next prime is 20356512349. The reversal of 20356512336 is 63321565302.

20356512336 is a `hidden beast` number, since 20 + 356 + 51 + 233 + 6 = 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 self number, because there is not a number n which added to its sum of digits gives 20356512336.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 104335 + ... + 227153.

It is an arithmetic number, because the mean of its divisors is an integer number (950332032).

Almost surely, 2^20356512336 is an apocalyptic number.

It is an amenable number.

20356512336 is an abundant number, since it is smaller than the sum of its proper divisors (36663409584).

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

20356512336 is a wasteful number, since it uses less digits than its factorization.

20356512336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123984 (or 123975 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 36.

The spelling of 20356512336 in words is "twenty billion, three hundred fifty-six million, five hundred twelve thousand, three hundred thirty-six".