16604074717 has 2 divisors, whose sum is σ = 16604074718. Its totient is φ = 16604074716.

The previous prime is 16604074657. The next prime is 16604074723. The reversal of 16604074717 is 71747040661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15511706116 + 1092368601 = 124546^2 + 33051^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16604074717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16604074757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8302037358 + 8302037359.

It is an arithmetic number, because the mean of its divisors is an integer number (8302037359).

Almost surely, 2^16604074717 is an apocalyptic number.

It is an amenable number.

16604074717 is a deficient number, since it is larger than the sum of its proper divisors (1).

16604074717 is an equidigital number, since it uses as much as digits as its factorization.

16604074717 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 197568, while the sum is 43.

The spelling of 16604074717 in words is "sixteen billion, six hundred four million, seventy-four thousand, seven hundred seventeen".