16880666188831 has 2 divisors, whose sum is σ = 16880666188832. Its totient is φ = 16880666188830.

The previous prime is 16880666188769. The next prime is 16880666188843. The reversal of 16880666188831 is 13888166608861.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16880666188831 - 2⁷ = 16880666188703 is a prime.

It is a super-2 number, since 2×16880666188831² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16880666188871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8440333094415 + 8440333094416.

It is an arithmetic number, because the mean of its divisors is an integer number (8440333094416).

Almost surely, 2^{16880666188831} is an apocalyptic number.

16880666188831 is a deficient number, since it is larger than the sum of its proper divisors (1).

16880666188831 is an equidigital number, since it uses as much as digits as its factorization.

16880666188831 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 127401984, while the sum is 70.

The spelling of 16880666188831 in words is "sixteen trillion, eight hundred eighty billion, six hundred sixty-six million, one hundred eighty-eight thousand, eight hundred thirty-one".