666700374 has 8 divisors (see below), whose sum is σ = 1333400760. Its totient is φ = 222233456.

The previous prime is 666700369. The next prime is 666700387. The reversal of 666700374 is 473007666.

It is a sphenic number, since it is the product of 3 distinct primes.

666700374 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55558359 + ... + 55558370.

It is an arithmetic number, because the mean of its divisors is an integer number (166675095).

Almost surely, 2^666700374 is an apocalyptic number.

666700374 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

666700374 is a wasteful number, since it uses less digits than its factorization.

666700374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111116734.

The product of its (nonzero) digits is 127008, while the sum is 39.

The square root of 666700374 is about 25820.5417061688. The cubic root of 666700374 is about 873.5951875221.

The spelling of 666700374 in words is "six hundred sixty-six million, seven hundred thousand, three hundred seventy-four".