66854244 has 12 divisors (see below), whose sum is σ = 155993264. Its totient is φ = 22284744.

The previous prime is 66854237. The next prime is 66854273. The reversal of 66854244 is 44245866.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

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, 2785582 + ... + 2785605.

Almost surely, 2^66854244 is an apocalyptic number.

It is an amenable number.

66854244 is an abundant number, since it is smaller than the sum of its proper divisors (89139020).

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

66854244 is a wasteful number, since it uses less digits than its factorization.

66854244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5571194 (or 5571192 counting only the distinct ones).

The product of its digits is 184320, while the sum is 39.

The square root of 66854244 is about 8176.4444595435. Note that the first 4 decimals coincide. The cubic root of 66854244 is about 405.8600713320.

The spelling of 66854244 in words is "sixty-six million, eight hundred fifty-four thousand, two hundred forty-four".