1116660566660 has 72 divisors (see below), whose sum is σ = 2478921663960. Its totient is φ = 422443191808.

The previous prime is 1116660566597. The next prime is 1116660566663. The reversal of 1116660566660 is 666650666111.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 101064224836 + 1015596341824 = 317906^2 + 1007768^2 .

It is a super-2 number, since 2×1116660566660² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1116660566599 and 1116660566608.

It is not an unprimeable number, because it can be changed into a prime (1116660566663) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 348674 + ... + 1534566.

It is an arithmetic number, because the mean of its divisors is an integer number (34429467555).

Almost surely, 2^{1116660566660} is an apocalyptic number.

1116660566660 is a gapful number since it is divisible by the number (10) 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 1116660566660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1239460831980).

1116660566660 is an abundant number, since it is smaller than the sum of its proper divisors (1362261097300).

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

1116660566660 is a wasteful number, since it uses less digits than its factorization.

1116660566660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1186037 (or 1186012 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 50.

The spelling of 1116660566660 in words is "one trillion, one hundred sixteen billion, six hundred sixty million, five hundred sixty-six thousand, six hundred sixty".