166977097 has 8 divisors (see below), whose sum is σ = 191399936. Its totient is φ = 142696512.

The previous prime is 166977071. The next prime is 166977101. The reversal of 166977097 is 790779661.

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

It is not a de Polignac number, because 166977097 - 2²³ = 158588489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (166977017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33033 + ... + 37750.

It is an arithmetic number, because the mean of its divisors is an integer number (23924992).

Almost surely, 2^166977097 is an apocalyptic number.

It is an amenable number.

166977097 is a deficient number, since it is larger than the sum of its proper divisors (24422839).

166977097 is an equidigital number, since it uses as much as digits as its factorization.

166977097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71127.

The product of its (nonzero) digits is 1000188, while the sum is 52.

The square root of 166977097 is about 12921.9618092610. The cubic root of 166977097 is about 550.6626690293.

The spelling of 166977097 in words is "one hundred sixty-six million, nine hundred seventy-seven thousand, ninety-seven".