11465661437189 has 2 divisors, whose sum is σ = 11465661437190. Its totient is φ = 11465661437188.

The previous prime is 11465661437177. The next prime is 11465661437221. The reversal of 11465661437189 is 98173416656411.

11465661437189 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11453554176100 + 12107261089 = 3384310^2 + 110033^2 .

It is a cyclic number.

It is not a de Polignac number, because 11465661437189 - 2¹⁶ = 11465661371653 is a prime.

It is a super-3 number, since 3×11465661437189³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 (11465661437159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5732830718594 + 5732830718595.

It is an arithmetic number, because the mean of its divisors is an integer number (5732830718595).

Almost surely, 2^{11465661437189} is an apocalyptic number.

It is an amenable number.

11465661437189 is a deficient number, since it is larger than the sum of its proper divisors (1).

11465661437189 is an equidigital number, since it uses as much as digits as its factorization.

11465661437189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26127360, while the sum is 62.

The spelling of 11465661437189 in words is "eleven trillion, four hundred sixty-five billion, six hundred sixty-one million, four hundred thirty-seven thousand, one hundred eighty-nine".