161165162 has 16 divisors (see below), whose sum is σ = 248002560. Its totient is φ = 78513168.

The previous prime is 161165149. The next prime is 161165171. The reversal of 161165162 is 261561161.

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, 17783 + ... + 25269.

It is an arithmetic number, because the mean of its divisors is an integer number (15500160).

Almost surely, 2^161165162 is an apocalyptic number.

161165162 is a deficient number, since it is larger than the sum of its proper divisors (86837398).

161165162 is a wasteful number, since it uses less digits than its factorization.

161165162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7765.

The product of its digits is 2160, while the sum is 29.

The square root of 161165162 is about 12695.0841667159. The cubic root of 161165162 is about 544.1981441011.

The spelling of 161165162 in words is "one hundred sixty-one million, one hundred sixty-five thousand, one hundred sixty-two".