11812361169157 has 2 divisors, whose sum is σ = 11812361169158. Its totient is φ = 11812361169156.

The previous prime is 11812361169079. The next prime is 11812361169163. The reversal of 11812361169157 is 75196116321811.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5932386051201 + 5879975117956 = 2435649^2 + 2424866^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11812361169157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11812361163157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5906180584578 + 5906180584579.

It is an arithmetic number, because the mean of its divisors is an integer number (5906180584579).

Almost surely, 2^{11812361169157} is an apocalyptic number.

It is an amenable number.

11812361169157 is a deficient number, since it is larger than the sum of its proper divisors (1).

11812361169157 is an equidigital number, since it uses as much as digits as its factorization.

11812361169157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320, while the sum is 52.

The spelling of 11812361169157 in words is "eleven trillion, eight hundred twelve billion, three hundred sixty-one million, one hundred sixty-nine thousand, one hundred fifty-seven".