97665161 has 8 divisors (see below), whose sum is σ = 107015904. Its totient is φ = 88393120.

The previous prime is 97665151. The next prime is 97665181. The reversal of 97665161 is 16156679.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97665161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97665101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17060 + ... + 22053.

It is an arithmetic number, because the mean of its divisors is an integer number (13376988).

Almost surely, 2^97665161 is an apocalyptic number.

It is an amenable number.

97665161 is a deficient number, since it is larger than the sum of its proper divisors (9350743).

97665161 is a wasteful number, since it uses less digits than its factorization.

97665161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39351.

The product of its digits is 68040, while the sum is 41.

The square root of 97665161 is about 9882.5685426411. The cubic root of 97665161 is about 460.5179436900.

The spelling of 97665161 in words is "ninety-seven million, six hundred sixty-five thousand, one hundred sixty-one".