13166743409 has 2 divisors, whose sum is σ = 13166743410. Its totient is φ = 13166743408.

The previous prime is 13166743391. The next prime is 13166743427. The reversal of 13166743409 is 90434766131.

It is a balanced prime because it is at equal distance from previous prime (13166743391) and next prime (13166743427).

It can be written as a sum of positive squares in only one way, i.e., 12147346225 + 1019397184 = 110215^2 + 31928^2 .

It is a cyclic number.

It is not a de Polignac number, because 13166743409 - 2⁸ = 13166743153 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13166743409.

It is not a weakly prime, because it can be changed into another prime (13166743489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6583371704 + 6583371705.

It is an arithmetic number, because the mean of its divisors is an integer number (6583371705).

Almost surely, 2^13166743409 is an apocalyptic number.

It is an amenable number.

13166743409 is a deficient number, since it is larger than the sum of its proper divisors (1).

13166743409 is an equidigital number, since it uses as much as digits as its factorization.

13166743409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592, while the sum is 44.

The spelling of 13166743409 in words is "thirteen billion, one hundred sixty-six million, seven hundred forty-three thousand, four hundred nine".