117842566 has 8 divisors (see below), whose sum is σ = 177557184. Its totient is φ = 58656840.

The previous prime is 117842561. The next prime is 117842581. The reversal of 117842566 is 665248711.

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

It is a super-2 number, since 2×117842566² = 27773740722928712, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117842561) 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, 131665 + ... + 132556.

It is an arithmetic number, because the mean of its divisors is an integer number (22194648).

Almost surely, 2^117842566 is an apocalyptic number.

117842566 is a deficient number, since it is larger than the sum of its proper divisors (59714618).

117842566 is a wasteful number, since it uses less digits than its factorization.

117842566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264446.

The product of its digits is 80640, while the sum is 40.

The square root of 117842566 is about 10855.5315853255. The cubic root of 117842566 is about 490.2685824516.

The spelling of 117842566 in words is "one hundred seventeen million, eight hundred forty-two thousand, five hundred sixty-six".