165054660 has 72 divisors (see below), whose sum is σ = 478785216. Its totient is φ = 42483840.

The previous prime is 165054641. The next prime is 165054697. The reversal of 165054660 is 66450561.

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, 48825 + ... + 52095.

Almost surely, 2^165054660 is an apocalyptic number.

165054660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 165054660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (239392608).

165054660 is an abundant number, since it is smaller than the sum of its proper divisors (313730556).

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

165054660 is a wasteful number, since it uses less digits than its factorization.

165054660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3341 (or 3310 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 165054660 is about 12847.3600401016. The cubic root of 165054660 is about 548.5412141174.

The spelling of 165054660 in words is "one hundred sixty-five million, fifty-four thousand, six hundred sixty".