16880666192987 has 2 divisors, whose sum is σ = 16880666192988. Its totient is φ = 16880666192986.

The previous prime is 16880666192969. The next prime is 16880666192989. The reversal of 16880666192987 is 78929166608861.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16880666192987 - 2²⁰ = 16880665144411 is a prime.

It is a super-2 number, since 2×16880666192987² (a number of 27 digits) contains 22 as substring.

Together with 16880666192989, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16880666192989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8440333096493 + 8440333096494.

It is an arithmetic number, because the mean of its divisors is an integer number (8440333096494).

Almost surely, 2^{16880666192987} is an apocalyptic number.

16880666192987 is a deficient number, since it is larger than the sum of its proper divisors (1).

16880666192987 is an equidigital number, since it uses as much as digits as its factorization.

16880666192987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 752467968, while the sum is 77.

The spelling of 16880666192987 in words is "sixteen trillion, eight hundred eighty billion, six hundred sixty-six million, one hundred ninety-two thousand, nine hundred eighty-seven".