20630807676 has 48 divisors (see below), whose sum is σ = 54240641280. Its totient is φ = 6780075120.

The previous prime is 20630807573. The next prime is 20630807693. The reversal of 20630807676 is 67670803602.

20630807676 is a `hidden beast` number, since 2 + 0 + 630 + 8 + 0 + 7 + 6 + 7 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1337586 + ... + 1352921.

It is an arithmetic number, because the mean of its divisors is an integer number (1130013360).

Almost surely, 2^20630807676 is an apocalyptic number.

It is an amenable number.

20630807676 is an abundant number, since it is smaller than the sum of its proper divisors (33609833604).

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

20630807676 is a wasteful number, since it uses less digits than its factorization.

20630807676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2690591 (or 2690583 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 45.

The spelling of 20630807676 in words is "twenty billion, six hundred thirty million, eight hundred seven thousand, six hundred seventy-six".