161151164 has 12 divisors (see below), whose sum is σ = 287335944. Its totient is φ = 79055184.

The previous prime is 161151163. The next prime is 161151227. The reversal of 161151164 is 461151161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161151163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 379862 + ... + 380285.

It is an arithmetic number, because the mean of its divisors is an integer number (23944662).

Almost surely, 2^161151164 is an apocalyptic number.

It is an amenable number.

161151164 is a deficient number, since it is larger than the sum of its proper divisors (126184780).

161151164 is a wasteful number, since it uses less digits than its factorization.

161151164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760204 (or 760202 counting only the distinct ones).

The product of its digits is 720, while the sum is 26.

The square root of 161151164 is about 12694.5328389823. The cubic root of 161151164 is about 544.1823882019.

The spelling of 161151164 in words is "one hundred sixty-one million, one hundred fifty-one thousand, one hundred sixty-four".