164976665 has 32 divisors (see below), whose sum is σ = 231289344. Its totient is φ = 110638080.

The previous prime is 164976649. The next prime is 164976671. The reversal of 164976665 is 566679461.

It is not a de Polignac number, because 164976665 - 2⁴ = 164976649 is a prime.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 489377 + ... + 489713.

It is an arithmetic number, because the mean of its divisors is an integer number (7227792).

Almost surely, 2^164976665 is an apocalyptic number.

It is an amenable number.

164976665 is a deficient number, since it is larger than the sum of its proper divisors (66312679).

164976665 is a wasteful number, since it uses less digits than its factorization.

164976665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617.

The product of its digits is 1632960, while the sum is 50.

The square root of 164976665 is about 12844.3242329054. The cubic root of 164976665 is about 548.4547978706.

The spelling of 164976665 in words is "one hundred sixty-four million, nine hundred seventy-six thousand, six hundred sixty-five".