11520990285056 has 72 divisors (see below), whose sum is σ = 26614946238720. Its totient is φ = 4875066353664.

The previous prime is 11520990285029. The next prime is 11520990285073. The reversal of 11520990285056 is 65058209902511.

It is a junction number, because it is equal to n+sod(n) for n = 11520990284989 and 11520990285007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40549091 + ... + 40832226.

Almost surely, 2^{11520990285056} is an apocalyptic number.

11520990285056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11520990285056 is an abundant number, since it is smaller than the sum of its proper divisors (15093955953664).

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

11520990285056 is an frugal number, since it uses more digits than its factorization.

11520990285056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81381419 (or 81381405 counting only the distinct ones).

The product of its (nonzero) digits is 1944000, while the sum is 53.

The spelling of 11520990285056 in words is "eleven trillion, five hundred twenty billion, nine hundred ninety million, two hundred eighty-five thousand, fifty-six".