166174449 has 8 divisors (see below), whose sum is σ = 253218240. Its totient is φ = 94956816.

The previous prime is 166174447. The next prime is 166174573. The reversal of 166174449 is 944471661.

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

It is not a de Polignac number, because 166174449 - 2¹ = 166174447 is a prime.

It is a super-2 number, since 2×166174449² = 55227895000907202, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 166174449.

It is not an unprimeable number, because it can be changed into a prime (166174441) 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, 3956514 + ... + 3956555.

It is an arithmetic number, because the mean of its divisors is an integer number (31652280).

Almost surely, 2^166174449 is an apocalyptic number.

It is an amenable number.

166174449 is a deficient number, since it is larger than the sum of its proper divisors (87043791).

166174449 is an equidigital number, since it uses as much as digits as its factorization.

166174449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7913079.

The product of its digits is 145152, while the sum is 42.

The square root of 166174449 is about 12890.8668831852. The cubic root of 166174449 is about 549.7789183070.

The spelling of 166174449 in words is "one hundred sixty-six million, one hundred seventy-four thousand, four hundred forty-nine".