16908379120663 has 2 divisors, whose sum is σ = 16908379120664. Its totient is φ = 16908379120662.

The previous prime is 16908379120603. The next prime is 16908379120673. The reversal of 16908379120663 is 36602197380961.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16908379120663 - 2⁴¹ = 14709355865111 is a prime.

It is a super-2 number, since 2×16908379120663² (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 (16908379120603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8454189560331 + 8454189560332.

It is an arithmetic number, because the mean of its divisors is an integer number (8454189560332).

Almost surely, 2^{16908379120663} is an apocalyptic number.

16908379120663 is a deficient number, since it is larger than the sum of its proper divisors (1).

16908379120663 is an equidigital number, since it uses as much as digits as its factorization.

16908379120663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17635968, while the sum is 61.

The spelling of 16908379120663 in words is "sixteen trillion, nine hundred eight billion, three hundred seventy-nine million, one hundred twenty thousand, six hundred sixty-three".