20464016562 has 48 divisors (see below), whose sum is σ = 49032124128. Its totient is φ = 6116264640.

The previous prime is 20464016513. The next prime is 20464016563. The reversal of 20464016562 is 26561046402.

20464016562 is a `hidden beast` number, since 2 + 0 + 4 + 640 + 1 + 6 + 5 + 6 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (20464016563) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 693448 + ... + 722355.

It is an arithmetic number, because the mean of its divisors is an integer number (1021502586).

Almost surely, 2^20464016562 is an apocalyptic number.

20464016562 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20464016562 is an abundant number, since it is smaller than the sum of its proper divisors (28568107566).

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

20464016562 is a wasteful number, since it uses less digits than its factorization.

20464016562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1415895 (or 1415892 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 20464016562 in words is "twenty billion, four hundred sixty-four million, sixteen thousand, five hundred sixty-two".