115506666 has 24 divisors (see below), whose sum is σ = 273016224. Its totient is φ = 35001960.

The previous prime is 115506649. The next prime is 115506673. The reversal of 115506666 is 666605511.

It is a self number, because there is not a number n which added to its sum of digits gives 115506666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 291486 + ... + 291881.

It is an arithmetic number, because the mean of its divisors is an integer number (11375676).

Almost surely, 2^115506666 is an apocalyptic number.

115506666 is an abundant number, since it is smaller than the sum of its proper divisors (157509558).

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

115506666 is a wasteful number, since it uses less digits than its factorization.

115506666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583386 (or 583383 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 115506666 is about 10747.4027560151. The cubic root of 115506666 is about 487.0075374058.

The spelling of 115506666 in words is "one hundred fifteen million, five hundred six thousand, six hundred sixty-six".