66672282 has 8 divisors (see below), whose sum is σ = 133344576. Its totient is φ = 22224092.

The previous prime is 66672269. The next prime is 66672401. The reversal of 66672282 is 28227666.

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

66672282 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 66672282.

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, 5556018 + ... + 5556029.

It is an arithmetic number, because the mean of its divisors is an integer number (16668072).

Almost surely, 2^66672282 is an apocalyptic number.

66672282 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.

66672282 is a wasteful number, since it uses less digits than its factorization.

66672282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11112052.

The product of its digits is 96768, while the sum is 39.

The square root of 66672282 is about 8165.3096695716. The cubic root of 66672282 is about 405.4915172491.

The spelling of 66672282 in words is "sixty-six million, six hundred seventy-two thousand, two hundred eighty-two".