17316620999 has 2 divisors, whose sum is σ = 17316621000. Its totient is φ = 17316620998.

The previous prime is 17316620831. The next prime is 17316621001. The reversal of 17316620999 is 99902661371.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 17316620999 - 2¹⁶ = 17316555463 is a prime.

It is a Sophie Germain prime.

Together with 17316621001, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 17316620999.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17316020999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8658310499 + 8658310500.

It is an arithmetic number, because the mean of its divisors is an integer number (8658310500).

Almost surely, 2^17316620999 is an apocalyptic number.

17316620999 is a deficient number, since it is larger than the sum of its proper divisors (1).

17316620999 is an equidigital number, since it uses as much as digits as its factorization.

17316620999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1102248, while the sum is 53.

The spelling of 17316620999 in words is "seventeen billion, three hundred sixteen million, six hundred twenty thousand, nine hundred ninety-nine".