164985594 has 16 divisors (see below), whose sum is σ = 335564640. Its totient is φ = 54062960.

The previous prime is 164985581. The next prime is 164985617. The reversal of 164985594 is 495589461.

It is a Curzon 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, 232677 + ... + 233384.

It is an arithmetic number, because the mean of its divisors is an integer number (20972790).

Almost surely, 2^164985594 is an apocalyptic number.

164985594 is an abundant number, since it is smaller than the sum of its proper divisors (170579046).

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

164985594 is a wasteful number, since it uses less digits than its factorization.

164985594 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466125.

The product of its digits is 1555200, while the sum is 51.

The square root of 164985594 is about 12844.6718136354. The cubic root of 164985594 is about 548.4646923296.

The spelling of 164985594 in words is "one hundred sixty-four million, nine hundred eighty-five thousand, five hundred ninety-four".