11465661437233 has 2 divisors, whose sum is σ = 11465661437234. Its totient is φ = 11465661437232.

The previous prime is 11465661437227. The next prime is 11465661437257. The reversal of 11465661437233 is 33273416656411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7034838514929 + 4430822922304 = 2652327^2 + 2104952^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11465661437233 is a prime.

It is a super-2 number, since 2×11465661437233² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11465661437933) 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, 5732830718616 + 5732830718617.

It is an arithmetic number, because the mean of its divisors is an integer number (5732830718617).

Almost surely, 2^{11465661437233} is an apocalyptic number.

It is an amenable number.

11465661437233 is a deficient number, since it is larger than the sum of its proper divisors (1).

11465661437233 is an equidigital number, since it uses as much as digits as its factorization.

11465661437233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6531840, while the sum is 52.

The spelling of 11465661437233 in words is "eleven trillion, four hundred sixty-five billion, six hundred sixty-one million, four hundred thirty-seven thousand, two hundred thirty-three".