161601682 has 16 divisors (see below), whose sum is σ = 264818304. Its totient is φ = 73350000.

The previous prime is 161601679. The next prime is 161601701. The reversal of 161601682 is 286106161.

It is a super-2 number, since 2×161601682² = 52230207250458248, which contains 22 as substring.

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, 11632 + ... + 21412.

It is an arithmetic number, because the mean of its divisors is an integer number (16551144).

Almost surely, 2^161601682 is an apocalyptic number.

161601682 is a deficient number, since it is larger than the sum of its proper divisors (103216622).

161601682 is a wasteful number, since it uses less digits than its factorization.

161601682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10545.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 161601682 is about 12712.2650224104. The cubic root of 161601682 is about 544.6890260840.

The spelling of 161601682 in words is "one hundred sixty-one million, six hundred one thousand, six hundred eighty-two".