20634725376 has 110 divisors (see below), whose sum is σ = 61619571860. Its totient is φ = 6878214144.

The previous prime is 20634725351. The next prime is 20634725381. The reversal of 20634725376 is 67352743602.

20634725376 is a `hidden beast` number, since 2 + 0 + 63 + 472 + 53 + 76 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 41446 + ... + 207333.

It is an arithmetic number, because the mean of its divisors is an integer number (560177926).

Almost surely, 2^20634725376 is an apocalyptic number.

It is an amenable number.

20634725376 is an abundant number, since it is smaller than the sum of its proper divisors (40984846484).

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

20634725376 is an equidigital number, since it uses as much as digits as its factorization.

20634725376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248811 (or 248784 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 45.

The spelling of 20634725376 in words is "twenty billion, six hundred thirty-four million, seven hundred twenty-five thousand, three hundred seventy-six".