115566644 has 12 divisors (see below), whose sum is σ = 202320384. Its totient is φ = 57760824.

The previous prime is 115566643. The next prime is 115566677. The reversal of 115566644 is 446665511.

It is a happy number.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 115566598 and 115566607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115566643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12227 + ... + 19509.

It is an arithmetic number, because the mean of its divisors is an integer number (16860032).

Almost surely, 2^115566644 is an apocalyptic number.

It is an amenable number.

115566644 is a deficient number, since it is larger than the sum of its proper divisors (86753740).

115566644 is a wasteful number, since it uses less digits than its factorization.

115566644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11254 (or 11252 counting only the distinct ones).

The product of its digits is 86400, while the sum is 38.

The square root of 115566644 is about 10750.1927424582. The cubic root of 115566644 is about 487.0918173432.

It can be divided in two parts, 11 and 5566644, that added together give a palindrome (5566655).

The spelling of 115566644 in words is "one hundred fifteen million, five hundred sixty-six thousand, six hundred forty-four".