20507014672 has 10 divisors (see below), whose sum is σ = 39732340958. Its totient is φ = 10253507328.

The previous prime is 20507014639. The next prime is 20507014681. The reversal of 20507014672 is 27641070502.

It can be written as a sum of positive squares in only one way, i.e., 20478754816 + 28259856 = 143104^2 + 5316^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 640844193 + ... + 640844224.

Almost surely, 2^20507014672 is an apocalyptic number.

It is an amenable number.

20507014672 is a deficient number, since it is larger than the sum of its proper divisors (19225326286).

20507014672 is a wasteful number, since it uses less digits than its factorization.

20507014672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1281688425 (or 1281688419 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 34.

The spelling of 20507014672 in words is "twenty billion, five hundred seven million, fourteen thousand, six hundred seventy-two".