165827660 has 48 divisors (see below), whose sum is σ = 353928960. Its totient is φ = 65257920.

The previous prime is 165827633. The next prime is 165827743. The reversal of 165827660 is 66728561.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 437351 + ... + 437729.

It is an arithmetic number, because the mean of its divisors is an integer number (7373520).

Almost surely, 2^165827660 is an apocalyptic number.

165827660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165827660 is an abundant number, since it is smaller than the sum of its proper divisors (188101300).

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

165827660 is a wasteful number, since it uses less digits than its factorization.

165827660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686 (or 684 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 165827660 is about 12877.4089008620. The cubic root of 165827660 is about 549.3962079207.

Subtracting from 165827660 its reverse (66728561), we obtain a palindrome (99099099).

It can be divided in two parts, 16582 and 7660, that added together give a palindrome (24242).

The spelling of 165827660 in words is "one hundred sixty-five million, eight hundred twenty-seven thousand, six hundred sixty".