164592661 has 8 divisors (see below), whose sum is σ = 171924480. Its totient is φ = 157371312.

The previous prime is 164592653. The next prime is 164592667. The reversal of 164592661 is 166295461.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 164592661 - 2³ = 164592653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164592667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24565 + ... + 30538.

It is an arithmetic number, because the mean of its divisors is an integer number (21490560).

Almost surely, 2^164592661 is an apocalyptic number.

It is an amenable number.

164592661 is a deficient number, since it is larger than the sum of its proper divisors (7331819).

164592661 is a wasteful number, since it uses less digits than its factorization.

164592661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55235.

The product of its digits is 77760, while the sum is 40.

The square root of 164592661 is about 12829.3671317022. The cubic root of 164592661 is about 548.0289347057.

The spelling of 164592661 in words is "one hundred sixty-four million, five hundred ninety-two thousand, six hundred sixty-one".