165066664 has 32 divisors (see below), whose sum is σ = 354470400. Its totient is φ = 70591680.

The previous prime is 165066659. The next prime is 165066689. The reversal of 165066664 is 466660561.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25609 + ... + 31399.

It is an arithmetic number, because the mean of its divisors is an integer number (11077200).

Almost surely, 2^165066664 is an apocalyptic number.

165066664 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

165066664 is an abundant number, since it is smaller than the sum of its proper divisors (189403736).

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

165066664 is a wasteful number, since it uses less digits than its factorization.

165066664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6313 (or 6309 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 40.

The square root of 165066664 is about 12847.8272092989. The cubic root of 165066664 is about 548.5545117913.

The spelling of 165066664 in words is "one hundred sixty-five million, sixty-six thousand, six hundred sixty-four".