164994665 has 8 divisors (see below), whose sum is σ = 215993088. Its totient is φ = 119996080.

The previous prime is 164994649. The next prime is 164994667. The reversal of 164994665 is 566499461.

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

It is not a de Polignac number, because 164994665 - 2⁴ = 164994649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164994667) 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, 1499897 + ... + 1500006.

It is an arithmetic number, because the mean of its divisors is an integer number (26999136).

Almost surely, 2^164994665 is an apocalyptic number.

It is an amenable number.

164994665 is a deficient number, since it is larger than the sum of its proper divisors (50998423).

164994665 is a wasteful number, since it uses less digits than its factorization.

164994665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2999919.

The product of its digits is 1399680, while the sum is 50.

The square root of 164994665 is about 12845.0249123931. The cubic root of 164994665 is about 548.4747437769.

The spelling of 164994665 in words is "one hundred sixty-four million, nine hundred ninety-four thousand, six hundred sixty-five".