11531460764165 has 4 divisors (see below), whose sum is σ = 13837752917004. Its totient is φ = 9225168611328.

The previous prime is 11531460764141. The next prime is 11531460764167. The reversal of 11531460764165 is 56146706413511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1800947896036 + 9730512868129 = 1341994^2 + 3119377^2 .

It is a cyclic number.

It is not a de Polignac number, because 11531460764165 - 2⁶ = 11531460764101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11531460764167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1153146076412 + ... + 1153146076421.

It is an arithmetic number, because the mean of its divisors is an integer number (3459438229251).

Almost surely, 2^{11531460764165} is an apocalyptic number.

It is an amenable number.

11531460764165 is a deficient number, since it is larger than the sum of its proper divisors (2306292152839).

11531460764165 is an equidigital number, since it uses as much as digits as its factorization.

11531460764165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2306292152838.

The product of its (nonzero) digits is 1814400, while the sum is 50.

The spelling of 11531460764165 in words is "eleven trillion, five hundred thirty-one billion, four hundred sixty million, seven hundred sixty-four thousand, one hundred sixty-five".