65994418 has 8 divisors (see below), whose sum is σ = 113133312. Its totient is φ = 28283316.

The previous prime is 65994413. The next prime is 65994427. The reversal of 65994418 is 81449956.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (65994413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2356930 + ... + 2356957.

It is an arithmetic number, because the mean of its divisors is an integer number (14141664).

Almost surely, 2^65994418 is an apocalyptic number.

65994418 is a deficient number, since it is larger than the sum of its proper divisors (47138894).

65994418 is a wasteful number, since it uses less digits than its factorization.

65994418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4713896.

The product of its digits is 311040, while the sum is 46.

The square root of 65994418 is about 8123.6948490204. The cubic root of 65994418 is about 404.1126087098.

The spelling of 65994418 in words is "sixty-five million, nine hundred ninety-four thousand, four hundred eighteen".