20164514056 has 16 divisors (see below), whose sum is σ = 38730622140. Its totient is φ = 9836348160.

The previous prime is 20164514039. The next prime is 20164514057. The reversal of 20164514056 is 65041546102.

It can be written as a sum of positive squares in 2 ways, for example, as 20132772100 + 31741956 = 141890^2 + 5634^2 .

It is a super-2 number, since 2×20164514056² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20164514057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30738261 + ... + 30738916.

Almost surely, 2^20164514056 is an apocalyptic number.

It is an amenable number.

20164514056 is a deficient number, since it is larger than the sum of its proper divisors (18566108084).

20164514056 is a wasteful number, since it uses less digits than its factorization.

20164514056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61477224 (or 61477220 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

The spelling of 20164514056 in words is "twenty billion, one hundred sixty-four million, five hundred fourteen thousand, fifty-six".