166360979 has 4 divisors (see below), whose sum is σ = 175116840. Its totient is φ = 157605120.

The previous prime is 166360951. The next prime is 166361003. The reversal of 166360979 is 979063661.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 979063661 = 433 ⋅2261117.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166360979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166360919) 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 3 ways as a sum of consecutive naturals, for example, 4377902 + ... + 4377939.

It is an arithmetic number, because the mean of its divisors is an integer number (43779210).

Almost surely, 2^166360979 is an apocalyptic number.

166360979 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

166360979 is a deficient number, since it is larger than the sum of its proper divisors (8755861).

166360979 is an equidigital number, since it uses as much as digits as its factorization.

166360979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8755860.

The product of its (nonzero) digits is 367416, while the sum is 47.

The square root of 166360979 is about 12898.0998212915. The cubic root of 166360979 is about 549.9845494282.

The spelling of 166360979 in words is "one hundred sixty-six million, three hundred sixty thousand, nine hundred seventy-nine".