115810666 has 8 divisors (see below), whose sum is σ = 178411140. Its totient is φ = 56340288.

The previous prime is 115810657. The next prime is 115810693. The reversal of 115810666 is 666018511.

It can be written as a sum of positive squares in 2 ways, for example, as 85174441 + 30636225 = 9229^2 + 5535^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×115810666² = 26824220718727112, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 782431 + ... + 782578.

Almost surely, 2^115810666 is an apocalyptic number.

115810666 is a deficient number, since it is larger than the sum of its proper divisors (62600474).

115810666 is a wasteful number, since it uses less digits than its factorization.

115810666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1565048.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 115810666 is about 10761.5364144717. The cubic root of 115810666 is about 487.4344120397.

The spelling of 115810666 in words is "one hundred fifteen million, eight hundred ten thousand, six hundred sixty-six".