16161594 has 48 divisors (see below), whose sum is σ = 36148032. Its totient is φ = 4791424.

The previous prime is 16161589. The next prime is 16161623. The reversal of 16161594 is 49516161.

It is a super-2 number, since 2×16161594² = 522394241241672, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 194677 + ... + 194759.

It is an arithmetic number, because the mean of its divisors is an integer number (753084).

Almost surely, 2^16161594 is an apocalyptic number.

16161594 is an abundant number, since it is smaller than the sum of its proper divisors (19986438).

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

16161594 is a wasteful number, since it uses less digits than its factorization.

16161594 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211 (or 128 counting only the distinct ones).

The product of its digits is 6480, while the sum is 33.

The square root of 16161594 is about 4020.1485047197. The cubic root of 16161594 is about 252.8296853493.

The spelling of 16161594 in words is "sixteen million, one hundred sixty-one thousand, five hundred ninety-four".