20624640562 has 32 divisors (see below), whose sum is σ = 32965257600. Its totient is φ = 9650016000.

The previous prime is 20624640557. The next prime is 20624640563. The reversal of 20624640562 is 26504642602.

It is not an unprimeable number, because it can be changed into a prime (20624640563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1678762 + ... + 1691002.

It is an arithmetic number, because the mean of its divisors is an integer number (1030164300).

Almost surely, 2^20624640562 is an apocalyptic number.

20624640562 is a deficient number, since it is larger than the sum of its proper divisors (12340617038).

20624640562 is a wasteful number, since it uses less digits than its factorization.

20624640562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12802.

The product of its (nonzero) digits is 138240, while the sum is 37.

The spelling of 20624640562 in words is "twenty billion, six hundred twenty-four million, six hundred forty thousand, five hundred sixty-two".