66283330 has 16 divisors (see below), whose sum is σ = 119745720. Its totient is φ = 26416512.

The previous prime is 66283313. The next prime is 66283331. The reversal of 66283330 is 3338266.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 48483369 + 17799961 = 6963^2 + 4219^2 .

It is a junction number, because it is equal to n+sod(n) for n = 66283292 and 66283301.

It is not an unprimeable number, because it can be changed into a prime (66283331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9195 + ... + 14734.

Almost surely, 2^66283330 is an apocalyptic number.

66283330 is a deficient number, since it is larger than the sum of its proper divisors (53462390).

66283330 is a wasteful number, since it uses less digits than its factorization.

66283330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24213.

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 66283330 is about 8141.4574862244. The cubic root of 66283330 is about 404.7014616462.

The spelling of 66283330 in words is "sixty-six million, two hundred eighty-three thousand, three hundred thirty".