666100882831 has 8 divisors (see below), whose sum is σ = 684148353824. Its totient is φ = 648055766880.

The previous prime is 666100882817. The next prime is 666100882849. The reversal of 666100882831 is 138288001666.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 666100882831 - 2⁹ = 666100882319 is a prime.

It is a super-2 number, since 2×666100882831² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666100882871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7755 + ... + 1154236.

It is an arithmetic number, because the mean of its divisors is an integer number (85518544228).

Almost surely, 2^666100882831 is an apocalyptic number.

666100882831 is a deficient number, since it is larger than the sum of its proper divisors (18047470993).

666100882831 is a wasteful number, since it uses less digits than its factorization.

666100882831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1177521.

The product of its (nonzero) digits is 663552, while the sum is 49.

The spelling of 666100882831 in words is "six hundred sixty-six billion, one hundred million, eight hundred eighty-two thousand, eight hundred thirty-one".