666632222115431 has 32 divisors (see below), whose sum is σ = 806306222168832. Its totient is φ = 543049920725760.

The previous prime is 666632222115403. The next prime is 666632222115479. The reversal of 666632222115431 is 134511222236666.

666632222115431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 666632222115431 - 2²² = 666632217921127 is a prime.

It is a super-3 number, since 3×666632222115431³ (a number of 45 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 666632222115431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666632222115401) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 331553270 + ... + 333557843.

It is an arithmetic number, because the mean of its divisors is an integer number (25197069442776).

Almost surely, 2^{666632222115431} is an apocalyptic number.

666632222115431 is a deficient number, since it is larger than the sum of its proper divisors (139674000053401).

666632222115431 is a wasteful number, since it uses less digits than its factorization.

666632222115431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665111343.

The product of its digits is 3732480, while the sum is 50.

The spelling of 666632222115431 in words is "six hundred sixty-six trillion, six hundred thirty-two billion, two hundred twenty-two million, one hundred fifteen thousand, four hundred thirty-one".