666103674 has 32 divisors (see below), whose sum is σ = 1371655296. Its totient is φ = 215490240.

The previous prime is 666103663. The next prime is 666103703. The reversal of 666103674 is 476301666.

It is a happy number.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89899 + ... + 97025.

It is an arithmetic number, because the mean of its divisors is an integer number (42864228).

Almost surely, 2^666103674 is an apocalyptic number.

666103674 is an abundant number, since it is smaller than the sum of its proper divisors (705551622).

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

666103674 is a wasteful number, since it uses less digits than its factorization.

666103674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7590.

The product of its (nonzero) digits is 108864, while the sum is 39.

The square root of 666103674 is about 25808.9843659141. The cubic root of 666103674 is about 873.3344857834.

The spelling of 666103674 in words is "six hundred sixty-six million, one hundred three thousand, six hundred seventy-four".