115966655 has 32 divisors (see below), whose sum is σ = 164118528. Its totient is φ = 77011200.

The previous prime is 115966651. The next prime is 115966661. The reversal of 115966655 is 556669511.

It is not a de Polignac number, because 115966655 - 2² = 115966651 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115966651) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 302594 + ... + 302976.

It is an arithmetic number, because the mean of its divisors is an integer number (5128704).

Almost surely, 2^115966655 is an apocalyptic number.

115966655 is a deficient number, since it is larger than the sum of its proper divisors (48151873).

115966655 is a wasteful number, since it uses less digits than its factorization.

115966655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647.

The product of its digits is 243000, while the sum is 44.

The square root of 115966655 is about 10768.7815002441. The cubic root of 115966655 is about 487.6531607294.

The spelling of 115966655 in words is "one hundred fifteen million, nine hundred sixty-six thousand, six hundred fifty-five".