666066244 has 24 divisors (see below), whose sum is σ = 1175178368. Its totient is φ = 330311520.

The previous prime is 666066241. The next prime is 666066251. The reversal of 666066244 is 442660666.

It is a junction number, because it is equal to n+sod(n) for n = 666066197 and 666066206.

It is not an unprimeable number, because it can be changed into a prime (666066241) 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, 334219 + ... + 336205.

Almost surely, 2^666066244 is an apocalyptic number.

It is an amenable number.

666066244 is a deficient number, since it is larger than the sum of its proper divisors (509112124).

666066244 is a wasteful number, since it uses less digits than its factorization.

666066244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2635 (or 2633 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 40.

The square root of 666066244 is about 25808.2592206449. The cubic root of 666066244 is about 873.3181272077.

The spelling of 666066244 in words is "six hundred sixty-six million, sixty-six thousand, two hundred forty-four".