11603445606656 has 72 divisors (see below), whose sum is σ = 24170992016640. Its totient is φ = 5548922413056.

The previous prime is 11603445606607. The next prime is 11603445606673. The reversal of 11603445606656 is 65660654430611.

It is a junction number, because it is equal to n+sod(n) for n = 11603445606598 and 11603445606607.

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, 62549816 + ... + 62735048.

Almost surely, 2^{11603445606656} is an apocalyptic number.

11603445606656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11603445606656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12085496008320).

11603445606656 is an abundant number, since it is smaller than the sum of its proper divisors (12567546409984).

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

11603445606656 is a wasteful number, since it uses less digits than its factorization.

11603445606656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195911 (or 195897 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 53.

The spelling of 11603445606656 in words is "eleven trillion, six hundred three billion, four hundred forty-five million, six hundred six thousand, six hundred fifty-six".