15351144260261 has 2 divisors, whose sum is σ = 15351144260262. Its totient is φ = 15351144260260.

The previous prime is 15351144260237. The next prime is 15351144260281. The reversal of 15351144260261 is 16206244115351.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15206147044036 + 144997216225 = 3899506^2 + 380785^2 .

It is a cyclic number.

It is not a de Polignac number, because 15351144260261 - 2¹⁰ = 15351144259237 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 (15351144260201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7675572130130 + 7675572130131.

It is an arithmetic number, because the mean of its divisors is an integer number (7675572130131).

Almost surely, 2^{15351144260261} is an apocalyptic number.

It is an amenable number.

15351144260261 is a deficient number, since it is larger than the sum of its proper divisors (1).

15351144260261 is an equidigital number, since it uses as much as digits as its factorization.

15351144260261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 172800, while the sum is 41.

The spelling of 15351144260261 in words is "fifteen trillion, three hundred fifty-one billion, one hundred forty-four million, two hundred sixty thousand, two hundred sixty-one".