115066555666 has 8 divisors (see below), whose sum is σ = 174183318540. Its totient is φ = 57005449488.

The previous prime is 115066555663. The next prime is 115066555679. The reversal of 115066555666 is 666555660511.

It can be written as a sum of positive squares in 2 ways, for example, as 114910830225 + 155725441 = 338985^2 + 12479^2 .

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

It is not an unprimeable number, because it can be changed into a prime (115066555661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 263913901 + ... + 263914336.

Almost surely, 2^115066555666 is an apocalyptic number.

115066555666 is a deficient number, since it is larger than the sum of its proper divisors (59116762874).

115066555666 is a wasteful number, since it uses less digits than its factorization.

115066555666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527828348.

The product of its (nonzero) digits is 4860000, while the sum is 52.

The spelling of 115066555666 in words is "one hundred fifteen billion, sixty-six million, five hundred fifty-five thousand, six hundred sixty-six".