161611162 has 4 divisors (see below), whose sum is σ = 242416746. Its totient is φ = 80805580.

The previous prime is 161611159. The next prime is 161611181. The reversal of 161611162 is 261116161.

161611162 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 106688241 + 54922921 = 10329^2 + 7411^2 .

It is a super-2 number, since 2×161611162² = 52236335365980488, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40402789 + ... + 40402792.

Almost surely, 2^161611162 is an apocalyptic number.

161611162 is a deficient number, since it is larger than the sum of its proper divisors (80805584).

161611162 is an equidigital number, since it uses as much as digits as its factorization.

161611162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80805583.

The product of its digits is 432, while the sum is 25.

The square root of 161611162 is about 12712.6378851913. The cubic root of 161611162 is about 544.6996768621.

The spelling of 161611162 in words is "one hundred sixty-one million, six hundred eleven thousand, one hundred sixty-two".