20164252104 has 80 divisors (see below), whose sum is σ = 56502002700. Its totient is φ = 6718629888.

The previous prime is 20164252091. The next prime is 20164252201. The reversal of 20164252104 is 40125246102.

20164252104 is a `hidden beast` number, since 2 + 0 + 1 + 642 + 5 + 2 + 10 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 19515531204 + 648720900 = 139698^2 + 25470^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2074584 + ... + 2084280.

Almost surely, 2^20164252104 is an apocalyptic number.

20164252104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20164252104 is an abundant number, since it is smaller than the sum of its proper divisors (36337750596).

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

20164252104 is a wasteful number, since it uses less digits than its factorization.

20164252104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12924 (or 12911 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 20164252104 its reverse (40125246102), we get a palindrome (60289498206).

The spelling of 20164252104 in words is "twenty billion, one hundred sixty-four million, two hundred fifty-two thousand, one hundred four".