198980611366164 has 48 divisors (see below), whose sum is σ = 470897968300032. Its totient is φ = 65388377922912.

The previous prime is 198980611366099. The next prime is 198980611366217. The reversal of 198980611366164 is 461663116089891.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 360683004 + ... + 361234259.

It is an arithmetic number, because the mean of its divisors is an integer number (9810374339584).

Almost surely, 2^{198980611366164} is an apocalyptic number.

It is an amenable number.

198980611366164 is an abundant number, since it is smaller than the sum of its proper divisors (271917356933868).

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

198980611366164 is a wasteful number, since it uses less digits than its factorization.

198980611366164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721917596 (or 721917594 counting only the distinct ones).

The product of its (nonzero) digits is 80621568, while the sum is 69.

The spelling of 198980611366164 in words is "one hundred ninety-eight trillion, nine hundred eighty billion, six hundred eleven million, three hundred sixty-six thousand, one hundred sixty-four".