11115654320656 has 80 divisors (see below), whose sum is σ = 22660924483008. Its totient is φ = 5276985753600.

The previous prime is 11115654320623. The next prime is 11115654320707. The reversal of 11115654320656 is 65602345651111.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2124496 + ... + 5171536.

Almost surely, 2^{11115654320656} is an apocalyptic number.

11115654320656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11115654320656 is an abundant number, since it is smaller than the sum of its proper divisors (11545270162352).

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

11115654320656 is a wasteful number, since it uses less digits than its factorization.

11115654320656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3047240 (or 3047234 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 46.

Adding to 11115654320656 its reverse (65602345651111), we get a palindrome (76717999971767).

The spelling of 11115654320656 in words is "eleven trillion, one hundred fifteen billion, six hundred fifty-four million, three hundred twenty thousand, six hundred fifty-six".