20916074764 has 36 divisors (see below), whose sum is σ = 40080799080. Its totient is φ = 9545078400.

The previous prime is 20916074747. The next prime is 20916074771. The reversal of 20916074764 is 46747061902.

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, 113662 + ... + 233989.

It is an arithmetic number, because the mean of its divisors is an integer number (1113355530).

Almost surely, 2^20916074764 is an apocalyptic number.

It is an amenable number.

20916074764 is a deficient number, since it is larger than the sum of its proper divisors (19164724316).

20916074764 is a wasteful number, since it uses less digits than its factorization.

20916074764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347770 (or 347755 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 46.

The spelling of 20916074764 in words is "twenty billion, nine hundred sixteen million, seventy-four thousand, seven hundred sixty-four".