666074698 has 16 divisors (see below), whose sum is σ = 1007344800. Its totient is φ = 330301296.

The previous prime is 666074611. The next prime is 666074719. The reversal of 666074698 is 896470666.

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, 200253 + ... + 203551.

It is an arithmetic number, because the mean of its divisors is an integer number (62959050).

Almost surely, 2^666074698 is an apocalyptic number.

666074698 is a deficient number, since it is larger than the sum of its proper divisors (341270102).

666074698 is a wasteful number, since it uses less digits than its factorization.

666074698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4101.

The product of its (nonzero) digits is 2612736, while the sum is 52.

The square root of 666074698 is about 25808.4230049029. The cubic root of 666074698 is about 873.3218220355.

The spelling of 666074698 in words is "six hundred sixty-six million, seventy-four thousand, six hundred ninety-eight".