166204674 has 24 divisors (see below), whose sum is σ = 360497280. Its totient is φ = 55342008.

The previous prime is 166204673. The next prime is 166204679. The reversal of 166204674 is 476402661.

It is not an unprimeable number, because it can be changed into a prime (166204673) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14259 + ... + 23145.

It is an arithmetic number, because the mean of its divisors is an integer number (15020720).

Almost surely, 2^166204674 is an apocalyptic number.

166204674 is an abundant number, since it is smaller than the sum of its proper divisors (194292606).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166204674 is a wasteful number, since it uses less digits than its factorization.

166204674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9934 (or 9931 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 166204674 is about 12892.0391715198. The cubic root of 166204674 is about 549.8122488632.

It can be divided in two parts, 16620 and 4674, that multiplied together give a triangular number (77681880 = T₁₂₄₆₄).

The spelling of 166204674 in words is "one hundred sixty-six million, two hundred four thousand, six hundred seventy-four".