666202404 has 48 divisors (see below), whose sum is σ = 1779821568. Its totient is φ = 189991968.

The previous prime is 666202391. The next prime is 666202417. The reversal of 666202404 is 404202666.

666202404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (666202391) and next prime (666202417).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40249 + ... + 54335.

It is an arithmetic number, because the mean of its divisors is an integer number (37079616).

Almost surely, 2^666202404 is an apocalyptic number.

It is an amenable number.

666202404 is an abundant number, since it is smaller than the sum of its proper divisors (1113619164).

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

666202404 is a wasteful number, since it uses less digits than its factorization.

666202404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14664 (or 14662 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 666202404 is about 25810.8970010730. The cubic root of 666202404 is about 873.3776322472.

The spelling of 666202404 in words is "six hundred sixty-six million, two hundred two thousand, four hundred four".