198165663649602 has 48 divisors (see below), whose sum is σ = 484543002041280. Its totient is φ = 57979504514400.

The previous prime is 198165663649567. The next prime is 198165663649633. The reversal of 198165663649602 is 206946366561891.

198165663649602 is a `hidden beast` number, since 1 + 9 + 8 + 1 + 6 + 5 + 6 + 6 + 3 + 6 + 4 + 9 + 602 = 666.

198165663649602 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17255799174 + ... + 17255810657.

It is an arithmetic number, because the mean of its divisors is an integer number (10094645875860).

Almost surely, 2^{198165663649602} is an apocalyptic number.

198165663649602 is an abundant number, since it is smaller than the sum of its proper divisors (286377338391678).

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

198165663649602 is a wasteful number, since it uses less digits than its factorization.

198165663649602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34511609879 (or 34511609876 counting only the distinct ones).

The product of its (nonzero) digits is 604661760, while the sum is 72.

The spelling of 198165663649602 in words is "one hundred ninety-eight trillion, one hundred sixty-five billion, six hundred sixty-three million, six hundred forty-nine thousand, six hundred two".