66818348 has 12 divisors (see below), whose sum is σ = 117175632. Its totient is φ = 33339600.

The previous prime is 66818341. The next prime is 66818371. The reversal of 66818348 is 84381866.

It is a junction number, because it is equal to n+sod(n) for n = 66818299 and 66818308.

It is not an unprimeable number, because it can be changed into a prime (66818341) 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, 15203 + ... + 19098.

It is an arithmetic number, because the mean of its divisors is an integer number (9764636).

Almost surely, 2^66818348 is an apocalyptic number.

It is an amenable number.

66818348 is a deficient number, since it is larger than the sum of its proper divisors (50357284).

66818348 is a wasteful number, since it uses less digits than its factorization.

66818348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34792 (or 34790 counting only the distinct ones).

The product of its digits is 221184, while the sum is 44.

The square root of 66818348 is about 8174.2490786616. The cubic root of 66818348 is about 405.7874189443.

The spelling of 66818348 in words is "sixty-six million, eight hundred eighteen thousand, three hundred forty-eight".