115556066 has 4 divisors (see below), whose sum is σ = 173334102. Its totient is φ = 57778032.

The previous prime is 115556057. The next prime is 115556083. The reversal of 115556066 is 660655511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 114939841 + 616225 = 10721^2 + 785^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28889015 + ... + 28889018.

Almost surely, 2^115556066 is an apocalyptic number.

115556066 is a deficient number, since it is larger than the sum of its proper divisors (57778036).

115556066 is an equidigital number, since it uses as much as digits as its factorization.

115556066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57778035.

The product of its (nonzero) digits is 27000, while the sum is 35.

The square root of 115556066 is about 10749.7007400206. The cubic root of 115556066 is about 487.0769554583.

The spelling of 115556066 in words is "one hundred fifteen million, five hundred fifty-six thousand, sixty-six".