165099192976 has 15 divisors (see below), whose sum is σ = 319882835433. Its totient is φ = 82548783840.

The previous prime is 165099192911. The next prime is 165099192991. The reversal of 165099192976 is 679291990561.

The square root of 165099192976 is 406324.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 73508223376 + 91590969600 = 271124^2 + 302640^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1574506 + ... + 1676086.

Almost surely, 2^165099192976 is an apocalyptic number.

165099192976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

165099192976 is the 406324-th square number.

It is an amenable number.

165099192976 is a deficient number, since it is larger than the sum of its proper divisors (154783642457).

165099192976 is an frugal number, since it uses more digits than its factorization.

165099192976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203170 (or 101583 counting only the distinct ones).

The product of its (nonzero) digits is 16533720, while the sum is 64.

Multiplying 165099192976 by its sum of digits (64), we get a square (10566348350464 = 3250592²).

The spelling of 165099192976 in words is "one hundred sixty-five billion, ninety-nine million, one hundred ninety-two thousand, nine hundred seventy-six".