11560555556 has 24 divisors (see below), whose sum is σ = 22181073600. Its totient is φ = 5228388000.

The previous prime is 11560555541. The next prime is 11560555571. The reversal of 11560555556 is 65555506511.

It is an interprime number because it is at equal distance from previous prime (11560555541) and next prime (11560555571).

It is a Harshad number since it is a multiple of its sum of digits (44).

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, 651395 + ... + 668906.

It is an arithmetic number, because the mean of its divisors is an integer number (924211400).

Almost surely, 2^11560555556 is an apocalyptic number.

It is an amenable number.

11560555556 is a deficient number, since it is larger than the sum of its proper divisors (10620518044).

11560555556 is a wasteful number, since it uses less digits than its factorization.

11560555556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1320515 (or 1320513 counting only the distinct ones).

The product of its (nonzero) digits is 562500, while the sum is 44.

It can be divided in two parts, 1156055 and 5556, that added together give a palindrome (1161611).

The spelling of 11560555556 in words is "eleven billion, five hundred sixty million, five hundred fifty-five thousand, five hundred fifty-six".