115778663 has 16 divisors (see below), whose sum is σ = 155452416. Its totient is φ = 83276640.

The previous prime is 115778651. The next prime is 115778669. The reversal of 115778663 is 366877511.

It is a cyclic number.

It is not a de Polignac number, because 115778663 - 2⁶ = 115778599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115778669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56831 + ... + 58832.

It is an arithmetic number, because the mean of its divisors is an integer number (9715776).

Almost surely, 2^115778663 is an apocalyptic number.

115778663 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

115778663 is a deficient number, since it is larger than the sum of its proper divisors (39673753).

115778663 is a wasteful number, since it uses less digits than its factorization.

115778663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115694.

The product of its digits is 211680, while the sum is 44.

The square root of 115778663 is about 10760.0493957974. The cubic root of 115778663 is about 487.3895088624.

The spelling of 115778663 in words is "one hundred fifteen million, seven hundred seventy-eight thousand, six hundred sixty-three".