56023181128840 has 32 divisors (see below), whose sum is σ = 127933533031680. Its totient is φ = 22074805697472.

The previous prime is 56023181128741. The next prime is 56023181128861. The reversal of 56023181128840 is 4882118132065.

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, 10452083352 + ... + 10452088711.

It is an arithmetic number, because the mean of its divisors is an integer number (3997922907240).

Almost surely, 2^{56023181128840} is an apocalyptic number.

It is an amenable number.

56023181128840 is an abundant number, since it is smaller than the sum of its proper divisors (71910351902840).

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

56023181128840 is a wasteful number, since it uses less digits than its factorization.

56023181128840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20904172141 (or 20904172137 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 49.

The spelling of 56023181128840 in words is "fifty-six trillion, twenty-three billion, one hundred eighty-one million, one hundred twenty-eight thousand, eight hundred forty".