13044266197 has 2 divisors, whose sum is σ = 13044266198. Its totient is φ = 13044266196.

The previous prime is 13044266171. The next prime is 13044266341. The reversal of 13044266197 is 79166244031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11645431396 + 1398834801 = 107914^2 + 37401^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13044266197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13044266597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6522133098 + 6522133099.

It is an arithmetic number, because the mean of its divisors is an integer number (6522133099).

Almost surely, 2^13044266197 is an apocalyptic number.

It is an amenable number.

13044266197 is a deficient number, since it is larger than the sum of its proper divisors (1).

13044266197 is an equidigital number, since it uses as much as digits as its factorization.

13044266197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 43.

The spelling of 13044266197 in words is "thirteen billion, forty-four million, two hundred sixty-six thousand, one hundred ninety-seven".