666650113032 has 32 divisors (see below), whose sum is σ = 1675000296000. Its totient is φ = 221100035904.

The previous prime is 666650113013. The next prime is 666650113079. The reversal of 666650113032 is 230311056666.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69786903 + ... + 69796454.

It is an arithmetic number, because the mean of its divisors is an integer number (52343759250).

Almost surely, 2^666650113032 is an apocalyptic number.

It is an amenable number.

666650113032 is an abundant number, since it is smaller than the sum of its proper divisors (1008350182968).

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

666650113032 is a wasteful number, since it uses less digits than its factorization.

666650113032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139583565 (or 139583561 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 39.

Adding to 666650113032 its reverse (230311056666), we get a palindrome (896961169698).

The spelling of 666650113032 in words is "six hundred sixty-six billion, six hundred fifty million, one hundred thirteen thousand, thirty-two".