1116665560 has 16 divisors (see below), whose sum is σ = 2512497600. Its totient is φ = 446666208.

The previous prime is 1116665531. The next prime is 1116665569. The reversal of 1116665560 is 655666111.

It is a super-2 number, since 2×1116665560² = 2493883945780227200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1116665569) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13958280 + ... + 13958359.

It is an arithmetic number, because the mean of its divisors is an integer number (157031100).

Almost surely, 2^1116665560 is an apocalyptic number.

1116665560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1116665560 is an abundant number, since it is smaller than the sum of its proper divisors (1395832040).

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

1116665560 is a wasteful number, since it uses less digits than its factorization.

1116665560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27916650 (or 27916646 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 1116665560 is about 33416.5462009466. The cubic root of 1116665560 is about 1037.4671971048.

The spelling of 1116665560 in words is "one billion, one hundred sixteen million, six hundred sixty-five thousand, five hundred sixty".