115105666 has 16 divisors (see below), whose sum is σ = 191939328. Its totient is φ = 51411600.

The previous prime is 115105663. The next prime is 115105681. The reversal of 115105666 is 666501511.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (115105663) 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, 70600 + ... + 72211.

It is an arithmetic number, because the mean of its divisors is an integer number (11996208).

Almost surely, 2^115105666 is an apocalyptic number.

115105666 is a deficient number, since it is larger than the sum of its proper divisors (76833662).

115105666 is a wasteful number, since it uses less digits than its factorization.

115105666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142857.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 115105666 is about 10728.7308662302. The cubic root of 115105666 is about 486.4433089223.

The spelling of 115105666 in words is "one hundred fifteen million, one hundred five thousand, six hundred sixty-six".