16880666192969 has 2 divisors, whose sum is σ = 16880666192970. Its totient is φ = 16880666192968.

The previous prime is 16880666192927. The next prime is 16880666192987. The reversal of 16880666192969 is 96929166608861.

16880666192969 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13455779276944 + 3424886916025 = 3668212^2 + 1850645^2 .

It is an emirp because it is prime and its reverse (96929166608861) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16880666192969 - 2¹² = 16880666188873 is a prime.

It is a super-2 number, since 2×16880666192969² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16880666192969.

It is not a weakly prime, because it can be changed into another prime (16880666192909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8440333096484 + 8440333096485.

It is an arithmetic number, because the mean of its divisors is an integer number (8440333096485).

Almost surely, 2^{16880666192969} is an apocalyptic number.

It is an amenable number.

16880666192969 is a deficient number, since it is larger than the sum of its proper divisors (1).

16880666192969 is an equidigital number, since it uses as much as digits as its factorization.

16880666192969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 725594112, while the sum is 77.

The spelling of 16880666192969 in words is "sixteen trillion, eight hundred eighty billion, six hundred sixty-six million, one hundred ninety-two thousand, nine hundred sixty-nine".