666392233052 has 36 divisors (see below), whose sum is σ = 1443192656976. Its totient is φ = 263627694720.

The previous prime is 666392233043. The next prime is 666392233069. The reversal of 666392233052 is 250332293666.

It is a junction number, because it is equal to n+sod(n) for n = 666392232988 and 666392233006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70408649 + ... + 70418112.

It is an arithmetic number, because the mean of its divisors is an integer number (40088684916).

Almost surely, 2^666392233052 is an apocalyptic number.

It is an amenable number.

666392233052 is an abundant number, since it is smaller than the sum of its proper divisors (776800423924).

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

666392233052 is a wasteful number, since it uses less digits than its factorization.

666392233052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140826798 (or 140826783 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 47.

The spelling of 666392233052 in words is "six hundred sixty-six billion, three hundred ninety-two million, two hundred thirty-three thousand, fifty-two".