166227674 has 4 divisors (see below), whose sum is σ = 249341514. Its totient is φ = 83113836.

The previous prime is 166227631. The next prime is 166227679. The reversal of 166227674 is 476722661.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 87142225 + 79085449 = 9335^2 + 8893^2 .

It is not an unprimeable number, because it can be changed into a prime (166227679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41556917 + ... + 41556920.

Almost surely, 2^166227674 is an apocalyptic number.

166227674 is a deficient number, since it is larger than the sum of its proper divisors (83113840).

166227674 is an equidigital number, since it uses as much as digits as its factorization.

166227674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83113839.

The product of its digits is 169344, while the sum is 41.

The square root of 166227674 is about 12892.9311640139. The cubic root of 166227674 is about 549.8376093582.

The spelling of 166227674 in words is "one hundred sixty-six million, two hundred twenty-seven thousand, six hundred seventy-four".