13330532261 has 2 divisors, whose sum is σ = 13330532262. Its totient is φ = 13330532260.

The previous prime is 13330532251. The next prime is 13330532273. The reversal of 13330532261 is 16223503331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12884520100 + 446012161 = 113510^2 + 21119^2 .

It is a cyclic number.

It is not a de Polignac number, because 13330532261 - 2⁶ = 13330532197 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13330532251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6665266130 + 6665266131.

It is an arithmetic number, because the mean of its divisors is an integer number (6665266131).

Almost surely, 2^13330532261 is an apocalyptic number.

It is an amenable number.

13330532261 is a deficient number, since it is larger than the sum of its proper divisors (1).

13330532261 is an equidigital number, since it uses as much as digits as its factorization.

13330532261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720, while the sum is 29.

The spelling of 13330532261 in words is "thirteen billion, three hundred thirty million, five hundred thirty-two thousand, two hundred sixty-one".