115220066 has 16 divisors (see below), whose sum is σ = 195921600. Its totient is φ = 50379408.

The previous prime is 115220057. The next prime is 115220069. The reversal of 115220066 is 660022511.

It is not an unprimeable number, because it can be changed into a prime (115220069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116126 + ... + 117113.

It is an arithmetic number, because the mean of its divisors is an integer number (12245100).

Almost surely, 2^115220066 is an apocalyptic number.

115220066 is a deficient number, since it is larger than the sum of its proper divisors (80701534).

115220066 is a wasteful number, since it uses less digits than its factorization.

115220066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233273.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 115220066 is about 10734.0610208811. The cubic root of 115220066 is about 486.6044092708.

Adding to 115220066 its reverse (660022511), we get a palindrome (775242577).

The spelling of 115220066 in words is "one hundred fifteen million, two hundred twenty thousand, sixty-six".