11115621313264 has 20 divisors (see below), whose sum is σ = 23193171394456. Its totient is φ = 5130286759872.

The previous prime is 11115621313259. The next prime is 11115621313283. The reversal of 11115621313264 is 46231312651111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26720243334 + ... + 26720243749.

Almost surely, 2^{11115621313264} is an apocalyptic number.

It is an amenable number.

11115621313264 is an abundant number, since it is smaller than the sum of its proper divisors (12077550081192).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11115621313264 is a wasteful number, since it uses less digits than its factorization.

11115621313264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53440487104 (or 53440487098 counting only the distinct ones).

The product of its digits is 25920, while the sum is 37.

Adding to 11115621313264 its reverse (46231312651111), we get a palindrome (57346933964375).

The spelling of 11115621313264 in words is "eleven trillion, one hundred fifteen billion, six hundred twenty-one million, three hundred thirteen thousand, two hundred sixty-four".