117218466 has 12 divisors (see below), whose sum is σ = 253973382. Its totient is φ = 39072816.

The previous prime is 117218461. The next prime is 117218477. The reversal of 117218466 is 664812711.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 98426241 + 18792225 = 9921^2 + 4335^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 117218466.

It is not an unprimeable number, because it can be changed into a prime (117218461) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3256051 + ... + 3256086.

Almost surely, 2^117218466 is an apocalyptic number.

117218466 is an abundant number, since it is smaller than the sum of its proper divisors (136754916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

117218466 is a wasteful number, since it uses less digits than its factorization.

117218466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6512145 (or 6512142 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 117218466 is about 10826.7477111088. The cubic root of 117218466 is about 489.4015545648.

The spelling of 117218466 in words is "one hundred seventeen million, two hundred eighteen thousand, four hundred sixty-six".