166379098 has 4 divisors (see below), whose sum is σ = 249568650. Its totient is φ = 83189548.

The previous prime is 166379089. The next prime is 166379099. The reversal of 166379098 is 890973661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 890973661 = 149 ⋅5979689.

It can be written as a sum of positive squares in only one way, i.e., 114639849 + 51739249 = 10707^2 + 7193^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (166379099) 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 as a sum of consecutive naturals, namely, 41594773 + ... + 41594776.

Almost surely, 2^166379098 is an apocalyptic number.

166379098 is a deficient number, since it is larger than the sum of its proper divisors (83189552).

166379098 is an equidigital number, since it uses as much as digits as its factorization.

166379098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83189551.

The product of its (nonzero) digits is 489888, while the sum is 49.

The square root of 166379098 is about 12898.8021924518. The cubic root of 166379098 is about 550.0045156654.

The spelling of 166379098 in words is "one hundred sixty-six million, three hundred seventy-nine thousand, ninety-eight".