198150166836 has 60 divisors (see below), whose sum is σ = 526783451040. Its totient is φ = 64930556880.

The previous prime is 198150166813. The next prime is 198150166847. The reversal of 198150166836 is 638661051891.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5163720 + ... + 5201951.

It is an arithmetic number, because the mean of its divisors is an integer number (8779724184).

Almost surely, 2^198150166836 is an apocalyptic number.

It is an amenable number.

198150166836 is an abundant number, since it is smaller than the sum of its proper divisors (328633284204).

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

198150166836 is a wasteful number, since it uses less digits than its factorization.

198150166836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10365746 (or 10365735 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 54.

The spelling of 198150166836 in words is "one hundred ninety-eight billion, one hundred fifty million, one hundred sixty-six thousand, eight hundred thirty-six".