666074612 has 24 divisors (see below), whose sum is σ = 1334825856. Its totient is φ = 284887008.

The previous prime is 666074611. The next prime is 666074719. The reversal of 666074612 is 216470666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666074611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9563 + ... + 37730.

It is an arithmetic number, because the mean of its divisors is an integer number (55617744).

Almost surely, 2^666074612 is an apocalyptic number.

It is an amenable number.

666074612 is an abundant number, since it is smaller than the sum of its proper divisors (668751244).

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

666074612 is a wasteful number, since it uses less digits than its factorization.

666074612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47807 (or 47805 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 666074612 is about 25808.4213387801. The cubic root of 666074612 is about 873.3217844493.

The spelling of 666074612 in words is "six hundred sixty-six million, seventy-four thousand, six hundred twelve".