16903691320577 has 2 divisors, whose sum is σ = 16903691320578. Its totient is φ = 16903691320576.

The previous prime is 16903691320441. The next prime is 16903691320613. The reversal of 16903691320577 is 77502319630961.

16903691320577 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., 16778821670416 + 124869650161 = 4096196^2 + 353369^2 .

It is a cyclic number.

It is not a de Polignac number, because 16903691320577 - 2¹⁶ = 16903691255041 is a prime.

It is a super-2 number, since 2×16903691320577² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16903691320277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8451845660288 + 8451845660289.

It is an arithmetic number, because the mean of its divisors is an integer number (8451845660289).

Almost surely, 2^{16903691320577} is an apocalyptic number.

It is an amenable number.

16903691320577 is a deficient number, since it is larger than the sum of its proper divisors (1).

16903691320577 is an equidigital number, since it uses as much as digits as its factorization.

16903691320577 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12859560, while the sum is 59.

The spelling of 16903691320577 in words is "sixteen trillion, nine hundred three billion, six hundred ninety-one million, three hundred twenty thousand, five hundred seventy-seven".