666674000 has 40 divisors (see below), whose sum is σ = 1612022568. Its totient is φ = 266668800.

The previous prime is 666673979. The next prime is 666674027. The reversal of 666674000 is 476666.

666674000 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 52823824 + 613850176 = 7268^2 + 24776^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164669 + ... + 168668.

Almost surely, 2^666674000 is an apocalyptic number.

It is an amenable number.

666674000 is an abundant number, since it is smaller than the sum of its proper divisors (945348568).

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

666674000 is a wasteful number, since it uses less digits than its factorization.

666674000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333360 (or 333344 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 666674000 is about 25820.0309837149. The cubic root of 666674000 is about 873.5836678529.

The spelling of 666674000 in words is "six hundred sixty-six million, six hundred seventy-four thousand".