16647613453 has 2 divisors, whose sum is σ = 16647613454. Its totient is φ = 16647613452.

The previous prime is 16647613447. The next prime is 16647613483. The reversal of 16647613453 is 35431674661.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8504897284 + 8142716169 = 92222^2 + 90237^2 .

It is a cyclic number.

It is not a de Polignac number, because 16647613453 - 2⁹ = 16647612941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16647613483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8323806726 + 8323806727.

It is an arithmetic number, because the mean of its divisors is an integer number (8323806727).

Almost surely, 2^16647613453 is an apocalyptic number.

It is an amenable number.

16647613453 is a deficient number, since it is larger than the sum of its proper divisors (1).

16647613453 is an equidigital number, since it uses as much as digits as its factorization.

16647613453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1088640, while the sum is 46.

The spelling of 16647613453 in words is "sixteen billion, six hundred forty-seven million, six hundred thirteen thousand, four hundred fifty-three".