19816960196 has 24 divisors (see below), whose sum is σ = 37859010336. Its totient is φ = 9001368320.

The previous prime is 19816960183. The next prime is 19816960199. The reversal of 19816960196 is 69106961891.

It is a super-2 number, since 2×19816960196² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (19816960199) 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, 95021 + ... + 220596.

It is an arithmetic number, because the mean of its divisors is an integer number (1577458764).

Almost surely, 2^19816960196 is an apocalyptic number.

It is an amenable number.

19816960196 is a deficient number, since it is larger than the sum of its proper divisors (18042050140).

19816960196 is a wasteful number, since it uses less digits than its factorization.

19816960196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317059 (or 317057 counting only the distinct ones).

The product of its (nonzero) digits is 1259712, while the sum is 56.

The spelling of 19816960196 in words is "nineteen billion, eight hundred sixteen million, nine hundred sixty thousand, one hundred ninety-six".