115216266 has 64 divisors (see below), whose sum is σ = 266918400. Its totient is φ = 32788800.

The previous prime is 115216253. The next prime is 115216271. The reversal of 115216266 is 662612511.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 173976 + ... + 174636.

It is an arithmetic number, because the mean of its divisors is an integer number (4170600).

Almost surely, 2^115216266 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 115216266, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133459200).

115216266 is an abundant number, since it is smaller than the sum of its proper divisors (151702134).

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

115216266 is a wasteful number, since it uses less digits than its factorization.

115216266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 835.

The product of its digits is 4320, while the sum is 30.

The square root of 115216266 is about 10733.8840127887. The cubic root of 115216266 is about 486.5990597481.

Adding to 115216266 its reverse (662612511), we get a palindrome (777828777).

The spelling of 115216266 in words is "one hundred fifteen million, two hundred sixteen thousand, two hundred sixty-six".