20512375630 has 16 divisors (see below), whose sum is σ = 37302919920. Its totient is φ = 8120362752.

The previous prime is 20512375619. The next prime is 20512375643. The reversal of 20512375630 is 3657321502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10572420 + ... + 10574359.

It is an arithmetic number, because the mean of its divisors is an integer number (2331432495).

Almost surely, 2^20512375630 is an apocalyptic number.

20512375630 is a deficient number, since it is larger than the sum of its proper divisors (16790544290).

20512375630 is a wasteful number, since it uses less digits than its factorization.

20512375630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21146883.

The product of its (nonzero) digits is 37800, while the sum is 34.

The spelling of 20512375630 in words is "twenty billion, five hundred twelve million, three hundred seventy-five thousand, six hundred thirty".