16880346308557 has 2 divisors, whose sum is σ = 16880346308558. Its totient is φ = 16880346308556.

The previous prime is 16880346308519. The next prime is 16880346308561. The reversal of 16880346308557 is 75580364308861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16398336864196 + 482009444361 = 4049486^2 + 694269^2 .

It is a cyclic number.

It is not a de Polignac number, because 16880346308557 - 2³¹ = 16878198824909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16880346318557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8440173154278 + 8440173154279.

It is an arithmetic number, because the mean of its divisors is an integer number (8440173154279).

Almost surely, 2^{16880346308557} is an apocalyptic number.

It is an amenable number.

16880346308557 is a deficient number, since it is larger than the sum of its proper divisors (1).

16880346308557 is an equidigital number, since it uses as much as digits as its factorization.

16880346308557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 116121600, while the sum is 64.

The spelling of 16880346308557 in words is "sixteen trillion, eight hundred eighty billion, three hundred forty-six million, three hundred eight thousand, five hundred fifty-seven".