16415849797 has 2 divisors, whose sum is σ = 16415849798. Its totient is φ = 16415849796.

The previous prime is 16415849783. The next prime is 16415849851. The reversal of 16415849797 is 79794851461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15899696836 + 516152961 = 126094^2 + 22719^2 .

It is a cyclic number.

It is not a de Polignac number, because 16415849797 - 2¹⁵ = 16415817029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16415849897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8207924898 + 8207924899.

It is an arithmetic number, because the mean of its divisors is an integer number (8207924899).

Almost surely, 2^16415849797 is an apocalyptic number.

It is an amenable number.

16415849797 is a deficient number, since it is larger than the sum of its proper divisors (1).

16415849797 is an equidigital number, since it uses as much as digits as its factorization.

16415849797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15240960, while the sum is 61.

The spelling of 16415849797 in words is "sixteen billion, four hundred fifteen million, eight hundred forty-nine thousand, seven hundred ninety-seven".