198800761991632 has 20 divisors (see below), whose sum is σ = 407833916145156. Its totient is φ = 93553299760640.

The previous prime is 198800761991609. The next prime is 198800761991639. The reversal of 198800761991632 is 236199167008891.

198800761991632 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 180720271514176 + 18080490477456 = 13443224^2 + 4252116^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198800761991639) 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, 365442576919 + ... + 365442577462.

Almost surely, 2^{198800761991632} is an apocalyptic number.

It is an amenable number.

198800761991632 is an abundant number, since it is smaller than the sum of its proper divisors (209033154153524).

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

198800761991632 is a wasteful number, since it uses less digits than its factorization.

198800761991632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730885154406 (or 730885154400 counting only the distinct ones).

The product of its (nonzero) digits is 70543872, while the sum is 70.

The spelling of 198800761991632 in words is "one hundred ninety-eight trillion, eight hundred billion, seven hundred sixty-one million, nine hundred ninety-one thousand, six hundred thirty-two".