20624136502 has 16 divisors (see below), whose sum is σ = 31057659360. Its totient is φ = 10271657088.

The previous prime is 20624136487. The next prime is 20624136521. The reversal of 20624136502 is 20563142602.

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, 559374 + ... + 595102.

It is an arithmetic number, because the mean of its divisors is an integer number (1941103710).

Almost surely, 2^20624136502 is an apocalyptic number.

20624136502 is a deficient number, since it is larger than the sum of its proper divisors (10433522858).

20624136502 is a wasteful number, since it uses less digits than its factorization.

20624136502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36855.

The product of its (nonzero) digits is 17280, while the sum is 31.

The spelling of 20624136502 in words is "twenty billion, six hundred twenty-four million, one hundred thirty-six thousand, five hundred two".