11153212031665 has 32 divisors (see below), whose sum is σ = 14792502735360. Its totient is φ = 8004895641600.

The previous prime is 11153212031651. The next prime is 11153212031669. The reversal of 11153212031665 is 56613021235111.

11153212031665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-11153212031665 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11153212031669) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8425197 + ... + 9658693.

It is an arithmetic number, because the mean of its divisors is an integer number (462265710480).

Almost surely, 2^{11153212031665} is an apocalyptic number.

It is an amenable number.

11153212031665 is a deficient number, since it is larger than the sum of its proper divisors (3639290703695).

11153212031665 is a wasteful number, since it uses less digits than its factorization.

11153212031665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1235673.

The product of its (nonzero) digits is 32400, while the sum is 37.

Adding to 11153212031665 its reverse (56613021235111), we get a palindrome (67766233266776).

The spelling of 11153212031665 in words is "eleven trillion, one hundred fifty-three billion, two hundred twelve million, thirty-one thousand, six hundred sixty-five".