164065494 has 16 divisors (see below), whose sum is σ = 345401280. Its totient is φ = 51810120.

The previous prime is 164065469. The next prime is 164065543. The reversal of 164065494 is 494560461.

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, 719472 + ... + 719699.

It is an arithmetic number, because the mean of its divisors is an integer number (21587580).

Almost surely, 2^164065494 is an apocalyptic number.

164065494 is an abundant number, since it is smaller than the sum of its proper divisors (181335786).

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

164065494 is a wasteful number, since it uses less digits than its factorization.

164065494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1439195.

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 164065494 is about 12808.8053307090. The cubic root of 164065494 is about 547.4432225687.

The spelling of 164065494 in words is "one hundred sixty-four million, sixty-five thousand, four hundred ninety-four".