165393516 has 12 divisors (see below), whose sum is σ = 385918232. Its totient is φ = 55131168.

The previous prime is 165393491. The next prime is 165393521. The reversal of 165393516 is 615393561.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6891385 + ... + 6891408.

Almost surely, 2^165393516 is an apocalyptic number.

It is an amenable number.

165393516 is an abundant number, since it is smaller than the sum of its proper divisors (220524716).

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

165393516 is a wasteful number, since it uses less digits than its factorization.

165393516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13782800 (or 13782798 counting only the distinct ones).

The product of its digits is 72900, while the sum is 39.

The square root of 165393516 is about 12860.5410461613. The cubic root of 165393516 is about 548.9163412127.

The spelling of 165393516 in words is "one hundred sixty-five million, three hundred ninety-three thousand, five hundred sixteen".