20566714922 has 24 divisors (see below), whose sum is σ = 33712234380. Its totient is φ = 9405227520.

The previous prime is 20566714907. The next prime is 20566714967. The reversal of 20566714922 is 22941766502.

It is a Cunningham number, because it is equal to 143411²+1.

It can be written as a sum of positive squares in 6 ways, for example, as 866066041 + 19700648881 = 29429^2 + 140359^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 242279 + ... + 315962.

Almost surely, 2^20566714922 is an apocalyptic number.

20566714922 is a deficient number, since it is larger than the sum of its proper divisors (13145519458).

20566714922 is a wasteful number, since it uses less digits than its factorization.

20566714922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558378 (or 558365 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 44.

The spelling of 20566714922 in words is "twenty billion, five hundred sixty-six million, seven hundred fourteen thousand, nine hundred twenty-two".