166374274 has 48 divisors (see below), whose sum is σ = 298570104. Its totient is φ = 69189120.

The previous prime is 166374259. The next prime is 166374281. The reversal of 166374274 is 472473661.

166374274 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 150430225 + 15944049 = 12265^2 + 3993^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 151672 + ... + 152764.

Almost surely, 2^166374274 is an apocalyptic number.

166374274 is a deficient number, since it is larger than the sum of its proper divisors (132195830).

166374274 is a wasteful number, since it uses less digits than its factorization.

166374274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1171 (or 1160 counting only the distinct ones).

The product of its digits is 169344, while the sum is 40.

The square root of 166374274 is about 12898.6151969892. The cubic root of 166374274 is about 549.9991999988. Note that the first 3 decimals are identical.

The spelling of 166374274 in words is "one hundred sixty-six million, three hundred seventy-four thousand, two hundred seventy-four".