666674074 has 16 divisors (see below), whose sum is σ = 1155093696. Its totient is φ = 285208000.

The previous prime is 666674059. The next prime is 666674083. The reversal of 666674074 is 470476666.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 890902 + ... + 891649.

It is an arithmetic number, because the mean of its divisors is an integer number (72193356).

Almost surely, 2^666674074 is an apocalyptic number.

666674074 is a deficient number, since it is larger than the sum of its proper divisors (488419622).

666674074 is a wasteful number, since it uses less digits than its factorization.

666674074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1782581.

The product of its (nonzero) digits is 1016064, while the sum is 46.

The square root of 666674074 is about 25820.0324167109. The cubic root of 666674074 is about 873.5837001752.

The spelling of 666674074 in words is "six hundred sixty-six million, six hundred seventy-four thousand, seventy-four".