56115111012 has 48 divisors (see below), whose sum is σ = 135617966400. Its totient is φ = 18037676160.

The previous prime is 56115110993. The next prime is 56115111047. The reversal of 56115111012 is 21011151165.

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, 182814 + ... + 381642.

It is an arithmetic number, because the mean of its divisors is an integer number (2825374300).

Almost surely, 2^56115111012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56115111012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67808983200).

56115111012 is an abundant number, since it is smaller than the sum of its proper divisors (79502855388).

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

56115111012 is a wasteful number, since it uses less digits than its factorization.

56115111012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199676 (or 199674 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 24.

Adding to 56115111012 its reverse (21011151165), we get a palindrome (77126262177).

The spelling of 56115111012 in words is "fifty-six billion, one hundred fifteen million, one hundred eleven thousand, twelve".