116421666 has 8 divisors (see below), whose sum is σ = 232843344. Its totient is φ = 38807220.

The previous prime is 116421629. The next prime is 116421703. The reversal of 116421666 is 666124611.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (116421629) and next prime (116421703).

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

116421666 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9701800 + ... + 9701811.

It is an arithmetic number, because the mean of its divisors is an integer number (29105418).

Almost surely, 2^116421666 is an apocalyptic number.

116421666 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

116421666 is a wasteful number, since it uses less digits than its factorization.

116421666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19403616.

The product of its digits is 10368, while the sum is 33.

The square root of 116421666 is about 10789.8872097905. The cubic root of 116421666 is about 488.2901196357.

The spelling of 116421666 in words is "one hundred sixteen million, four hundred twenty-one thousand, six hundred sixty-six".