20785631622696 has 64 divisors (see below), whose sum is σ = 59728826520000. Its totient is φ = 6689628566208.

The previous prime is 20785631622673. The next prime is 20785631622719. The reversal of 20785631622696 is 69622613658702.

20785631622696 is a `hidden beast` number, since 2 + 0 + 7 + 8 + 5 + 6 + 316 + 226 + 96 = 666.

It is an interprime number because it is at equal distance from previous prime (20785631622673) and next prime (20785631622719).

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 15 ways as a sum of consecutive naturals, for example, 1659127806 + ... + 1659140333.

It is an arithmetic number, because the mean of its divisors is an integer number (933262914375).

Almost surely, 2^{20785631622696} is an apocalyptic number.

It is an amenable number.

20785631622696 is an abundant number, since it is smaller than the sum of its proper divisors (38943194897304).

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

20785631622696 is a wasteful number, since it uses less digits than its factorization.

20785631622696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3318268183 (or 3318268173 counting only the distinct ones).

The product of its (nonzero) digits is 78382080, while the sum is 63.

The spelling of 20785631622696 in words is "twenty trillion, seven hundred eighty-five billion, six hundred thirty-one million, six hundred twenty-two thousand, six hundred ninety-six".