1116661005568 has 108 divisors (see below), whose sum is σ = 2492411575360. Its totient is φ = 497829666816.

The previous prime is 1116661005557. The next prime is 1116661005571. The reversal of 1116661005568 is 8655001666111.

It is a happy number.

It is a super-2 number, since 2×1116661005568² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1008505 + ... + 1802887.

Almost surely, 2^{1116661005568} 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 1116661005568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1246205787680).

1116661005568 is an abundant number, since it is smaller than the sum of its proper divisors (1375750569792).

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

1116661005568 is an equidigital number, since it uses as much as digits as its factorization.

1116661005568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 794452 (or 794421 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 46.

The spelling of 1116661005568 in words is "one trillion, one hundred sixteen billion, six hundred sixty-one million, five thousand, five hundred sixty-eight".