198011072916 has 36 divisors (see below), whose sum is σ = 507998563072. Its totient is φ = 65018560464.

The previous prime is 198011072911. The next prime is 198011072953. The reversal of 198011072916 is 619270110891.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198011072911) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41044660 + ... + 41049483.

Almost surely, 2^198011072916 is an apocalyptic number.

It is an amenable number.

198011072916 is an abundant number, since it is smaller than the sum of its proper divisors (309987490156).

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

198011072916 is a wasteful number, since it uses less digits than its factorization.

198011072916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82094220 (or 82094215 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 45.

The spelling of 198011072916 in words is "one hundred ninety-eight billion, eleven million, seventy-two thousand, nine hundred sixteen".