16997293903 has 2 divisors, whose sum is σ = 16997293904. Its totient is φ = 16997293902.

The previous prime is 16997293867. The next prime is 16997293909. The reversal of 16997293903 is 30939279961.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16997293903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16997293909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8498646951 + 8498646952.

It is an arithmetic number, because the mean of its divisors is an integer number (8498646952).

Almost surely, 2^16997293903 is an apocalyptic number.

16997293903 is a deficient number, since it is larger than the sum of its proper divisors (1).

16997293903 is an equidigital number, since it uses as much as digits as its factorization.

16997293903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4960116, while the sum is 58.

The spelling of 16997293903 in words is "sixteen billion, nine hundred ninety-seven million, two hundred ninety-three thousand, nine hundred three".