19664005932 has 48 divisors (see below), whose sum is σ = 52625305600. Its totient is φ = 6343226640.

The previous prime is 19664005931. The next prime is 19664005973. The reversal of 19664005932 is 23950046691.

19664005932 is a `hidden beast` number, since 19 + 6 + 6 + 40 + 0 + 593 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (19664005931) 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, 2933332 + ... + 2940027.

Almost surely, 2^19664005932 is an apocalyptic number.

19664005932 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19664005932 is an abundant number, since it is smaller than the sum of its proper divisors (32961299668).

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

19664005932 is a wasteful number, since it uses less digits than its factorization.

19664005932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5873403 (or 5873395 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 45.

The spelling of 19664005932 in words is "nineteen billion, six hundred sixty-four million, five thousand, nine hundred thirty-two".