116666116666 has 32 divisors (see below), whose sum is σ = 192854203776. Its totient is φ = 52489800000.

The previous prime is 116666116663. The next prime is 116666116729. The reversal of 116666116666 is 666611666611.

It is a super-2 number, since 2×116666116666² (a number of 23 digits) contains 22 as substring.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (116666116663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11778316 + ... + 11788216.

It is an arithmetic number, because the mean of its divisors is an integer number (6026693868).

Almost surely, 2^116666116666 is an apocalyptic number.

116666116666 is a deficient number, since it is larger than the sum of its proper divisors (76188087110).

116666116666 is a wasteful number, since it uses less digits than its factorization.

116666116666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15318.

The product of its digits is 1679616, while the sum is 52.

Subtracting 116666116666 from its reverse (666611666611), we obtain a palindrome (549945549945).

It can be divided in two parts, 116666 and 116666, that added together give a palindrome (233332).

The spelling of 116666116666 in words is "one hundred sixteen billion, six hundred sixty-six million, one hundred sixteen thousand, six hundred sixty-six".