666313134633 has 6 divisors (see below), whose sum is σ = 962452305594. Its totient is φ = 444208756416.

The previous prime is 666313134611. The next prime is 666313134659. The reversal of 666313134633 is 336431313666.

It can be written as a sum of positive squares in only one way, i.e., 344225103849 + 322088030784 = 586707^2 + 567528^2 .

It is not a de Polignac number, because 666313134633 - 2¹² = 666313130537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (666313134673) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 37017396360 + ... + 37017396377.

It is an arithmetic number, because the mean of its divisors is an integer number (160408717599).

Almost surely, 2^666313134633 is an apocalyptic number.

It is an amenable number.

666313134633 is a deficient number, since it is larger than the sum of its proper divisors (296139170961).

666313134633 is a wasteful number, since it uses less digits than its factorization.

666313134633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74034792743 (or 74034792740 counting only the distinct ones).

The product of its digits is 1259712, while the sum is 45.

The spelling of 666313134633 in words is "six hundred sixty-six billion, three hundred thirteen million, one hundred thirty-four thousand, six hundred thirty-three".