164691894 has 16 divisors (see below), whose sum is σ = 329836032. Its totient is φ = 54821928.

The previous prime is 164691889. The next prime is 164691931. The reversal of 164691894 is 498196461.

164691894 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 14014 + ... + 22929.

It is an arithmetic number, because the mean of its divisors is an integer number (20614752).

Almost surely, 2^164691894 is an apocalyptic number.

164691894 is an abundant number, since it is smaller than the sum of its proper divisors (165144138).

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

164691894 is a wasteful number, since it uses less digits than its factorization.

164691894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37691.

The product of its digits is 373248, while the sum is 48.

The square root of 164691894 is about 12833.2339649833. The cubic root of 164691894 is about 548.1390482217.

The spelling of 164691894 in words is "one hundred sixty-four million, six hundred ninety-one thousand, eight hundred ninety-four".