1163245460261 has 2 divisors, whose sum is σ = 1163245460262. Its totient is φ = 1163245460260.

The previous prime is 1163245460257. The next prime is 1163245460323. The reversal of 1163245460261 is 1620645423611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 590546140900 + 572699319361 = 768470^2 + 756769^2 .

It is a cyclic number.

It is not a de Polignac number, because 1163245460261 - 2² = 1163245460257 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1163245460161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 581622730130 + 581622730131.

It is an arithmetic number, because the mean of its divisors is an integer number (581622730131).

Almost surely, 2^{1163245460261} is an apocalyptic number.

It is an amenable number.

1163245460261 is a deficient number, since it is larger than the sum of its proper divisors (1).

1163245460261 is an equidigital number, since it uses as much as digits as its factorization.

1163245460261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 207360, while the sum is 41.

The spelling of 1163245460261 in words is "one trillion, one hundred sixty-three billion, two hundred forty-five million, four hundred sixty thousand, two hundred sixty-one".