165161368 has 16 divisors (see below), whose sum is σ = 313409880. Its totient is φ = 81585408.

The previous prime is 165161363. The next prime is 165161383. The reversal of 165161368 is 863161561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165161363) 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, 123705 + ... + 125032.

Almost surely, 2^165161368 is an apocalyptic number.

It is an amenable number.

165161368 is a deficient number, since it is larger than the sum of its proper divisors (148248512).

165161368 is a wasteful number, since it uses less digits than its factorization.

165161368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248826 (or 248822 counting only the distinct ones).

The product of its digits is 25920, while the sum is 37.

The square root of 165161368 is about 12851.5122845524. The cubic root of 165161368 is about 548.6593994636.

The spelling of 165161368 in words is "one hundred sixty-five million, one hundred sixty-one thousand, three hundred sixty-eight".