19696514164 has 12 divisors (see below), whose sum is σ = 34561312324. Its totient is φ = 9821853504.

The previous prime is 19696514161. The next prime is 19696514171. The reversal of 19696514164 is 46141569691.

It can be written as a sum of positive squares in 2 ways, for example, as 11240240400 + 8456273764 = 106020^2 + 91958^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19696514161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6599217 + ... + 6602200.

Almost surely, 2^19696514164 is an apocalyptic number.

It is an amenable number.

19696514164 is a deficient number, since it is larger than the sum of its proper divisors (14864798160).

19696514164 is a wasteful number, since it uses less digits than its factorization.

19696514164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13201794 (or 13201792 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 52.

The spelling of 19696514164 in words is "nineteen billion, six hundred ninety-six million, five hundred fourteen thousand, one hundred sixty-four".