19964672196 has 24 divisors (see below), whose sum is σ = 53239126080. Its totient is φ = 5704192032.

The previous prime is 19964672191. The next prime is 19964672213. The reversal of 19964672196 is 69127646991.

It is not an unprimeable number, because it can be changed into a prime (19964672191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118837251 + ... + 118837418.

It is an arithmetic number, because the mean of its divisors is an integer number (2218296920).

Almost surely, 2^19964672196 is an apocalyptic number.

It is an amenable number.

19964672196 is an abundant number, since it is smaller than the sum of its proper divisors (33274453884).

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

19964672196 is a wasteful number, since it uses less digits than its factorization.

19964672196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237674683 (or 237674681 counting only the distinct ones).

The product of its digits is 8817984, while the sum is 60.

The spelling of 19964672196 in words is "nineteen billion, nine hundred sixty-four million, six hundred seventy-two thousand, one hundred ninety-six".