20776484765016 has 72 divisors (see below), whose sum is σ = 59774330147220. Its totient is φ = 6518112860928.

The previous prime is 20776484764927. The next prime is 20776484765117. The reversal of 20776484765016 is 61056748467702.

20776484765016 is a `hidden beast` number, since 2 + 0 + 7 + 76 + 48 + 476 + 50 + 1 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 499221906 + ... + 499263521.

Almost surely, 2^{20776484765016} is an apocalyptic number.

It is an amenable number.

20776484765016 is an abundant number, since it is smaller than the sum of its proper divisors (38997845382204).

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

20776484765016 is a wasteful number, since it uses less digits than its factorization.

20776484765016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998485473 (or 998485449 counting only the distinct ones).

The product of its (nonzero) digits is 94832640, while the sum is 63.

The spelling of 20776484765016 in words is "twenty trillion, seven hundred seventy-six billion, four hundred eighty-four million, seven hundred sixty-five thousand, sixteen".