13366075861 has 2 divisors, whose sum is σ = 13366075862. Its totient is φ = 13366075860.

The previous prime is 13366075783. The next prime is 13366075873. The reversal of 13366075861 is 16857066331.

13366075861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9128847025 + 4237228836 = 95545^2 + 65094^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13366075861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13366075561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6683037930 + 6683037931.

It is an arithmetic number, because the mean of its divisors is an integer number (6683037931).

Almost surely, 2^13366075861 is an apocalyptic number.

It is an amenable number.

13366075861 is a deficient number, since it is larger than the sum of its proper divisors (1).

13366075861 is an equidigital number, since it uses as much as digits as its factorization.

13366075861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 544320, while the sum is 46.

The spelling of 13366075861 in words is "thirteen billion, three hundred sixty-six million, seventy-five thousand, eight hundred sixty-one".