117909166 has 8 divisors (see below), whose sum is σ = 176941224. Its totient is φ = 58928760.

The previous prime is 117909163. The next prime is 117909167. The reversal of 117909166 is 661909711.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117909163) 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, 6585 + ... + 16708.

It is an arithmetic number, because the mean of its divisors is an integer number (22117653).

Almost surely, 2^117909166 is an apocalyptic number.

117909166 is a deficient number, since it is larger than the sum of its proper divisors (59032058).

117909166 is a wasteful number, since it uses less digits than its factorization.

117909166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25826.

The product of its (nonzero) digits is 20412, while the sum is 40.

The square root of 117909166 is about 10858.5987125411. The cubic root of 117909166 is about 490.3609252540.

The spelling of 117909166 in words is "one hundred seventeen million, nine hundred nine thousand, one hundred sixty-six".