19982000196 has 18 divisors (see below), whose sum is σ = 50510056142. Its totient is φ = 6660666720.

The previous prime is 19982000179. The next prime is 19982000221. The reversal of 19982000196 is 69100028991.

It can be written as a sum of positive squares in only one way, i.e., 19510502400 + 471497796 = 139680^2 + 21714^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 277527745 + ... + 277527816.

Almost surely, 2^19982000196 is an apocalyptic number.

It is an amenable number.

19982000196 is an abundant number, since it is smaller than the sum of its proper divisors (30528055946).

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

19982000196 is a wasteful number, since it uses less digits than its factorization.

19982000196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555055571 (or 555055566 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 45.

The spelling of 19982000196 in words is "nineteen billion, nine hundred eighty-two million, one hundred ninety-six", and thus it is an aban number.