117065566 has 4 divisors (see below), whose sum is σ = 175598352. Its totient is φ = 58532782.

The previous prime is 117065563. The next prime is 117065573. The reversal of 117065566 is 665560711.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117065563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29266390 + ... + 29266393.

It is an arithmetic number, because the mean of its divisors is an integer number (43899588).

Almost surely, 2^117065566 is an apocalyptic number.

117065566 is a deficient number, since it is larger than the sum of its proper divisors (58532786).

117065566 is an equidigital number, since it uses as much as digits as its factorization.

117065566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58532785.

The product of its (nonzero) digits is 37800, while the sum is 37.

The square root of 117065566 is about 10819.6841913246. The cubic root of 117065566 is about 489.1886698554.

The spelling of 117065566 in words is "one hundred seventeen million, sixty-five thousand, five hundred sixty-six".