97566161 has 32 divisors (see below), whose sum is σ = 128563200. Its totient is φ = 71786880.

The previous prime is 97566127. The next prime is 97566181. The reversal of 97566161 is 16166579.

It is not a de Polignac number, because 97566161 - 2¹⁸ = 97304017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97566181) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 157310 + ... + 157928.

It is an arithmetic number, because the mean of its divisors is an integer number (4017600).

Almost surely, 2^97566161 is an apocalyptic number.

It is an amenable number.

97566161 is a deficient number, since it is larger than the sum of its proper divisors (30997039).

97566161 is a wasteful number, since it uses less digits than its factorization.

97566161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749.

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

The square root of 97566161 is about 9877.5584533831. The cubic root of 97566161 is about 460.3622870586.

The spelling of 97566161 in words is "ninety-seven million, five hundred sixty-six thousand, one hundred sixty-one".