20566992376 has 16 divisors (see below), whose sum is σ = 44072126640. Its totient is φ = 8814425280.

The previous prime is 20566992359. The next prime is 20566992389. The reversal of 20566992376 is 67329966502.

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 3 ways as a sum of consecutive naturals, for example, 183633805 + ... + 183633916.

It is an arithmetic number, because the mean of its divisors is an integer number (2754507915).

Almost surely, 2^20566992376 is an apocalyptic number.

It is an amenable number.

20566992376 is an abundant number, since it is smaller than the sum of its proper divisors (23505134264).

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

20566992376 is a wasteful number, since it uses less digits than its factorization.

20566992376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367267734 (or 367267730 counting only the distinct ones).

The product of its (nonzero) digits is 7348320, while the sum is 55.

The spelling of 20566992376 in words is "twenty billion, five hundred sixty-six million, nine hundred ninety-two thousand, three hundred seventy-six".