11553372512165 has 8 divisors (see below), whose sum is σ = 15124414925088. Its totient is φ = 8402452736080.

The previous prime is 11553372512159. The next prime is 11553372512183. The reversal of 11553372512165 is 56121527335511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11553372512165 - 2²⁰ = 11553371463589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 105030659147 + ... + 105030659256.

It is an arithmetic number, because the mean of its divisors is an integer number (1890551865636).

Almost surely, 2^{11553372512165} is an apocalyptic number.

It is an amenable number.

11553372512165 is a deficient number, since it is larger than the sum of its proper divisors (3571042412923).

11553372512165 is a wasteful number, since it uses less digits than its factorization.

11553372512165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210061318419.

The product of its digits is 945000, while the sum is 47.

Adding to 11553372512165 its reverse (56121527335511), we get a palindrome (67674899847676).

The spelling of 11553372512165 in words is "eleven trillion, five hundred fifty-three billion, three hundred seventy-two million, five hundred twelve thousand, one hundred sixty-five".