165276664 has 32 divisors (see below), whose sum is σ = 355968000. Its totient is φ = 70472160.

The previous prime is 165276659. The next prime is 165276697. The reversal of 165276664 is 466672561.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 165276664.

It is a congruent number.

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, 3729 + ... + 18559.

It is an arithmetic number, because the mean of its divisors is an integer number (11124000).

Almost surely, 2^165276664 is an apocalyptic number.

165276664 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

165276664 is an abundant number, since it is smaller than the sum of its proper divisors (190691336).

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

165276664 is a wasteful number, since it uses less digits than its factorization.

165276664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15043 (or 15039 counting only the distinct ones).

The product of its digits is 362880, while the sum is 43.

The square root of 165276664 is about 12855.9971997508. The cubic root of 165276664 is about 548.7870393203.

The spelling of 165276664 in words is "one hundred sixty-five million, two hundred seventy-six thousand, six hundred sixty-four".