66260330 has 32 divisors (see below), whose sum is σ = 123821568. Its totient is φ = 25502400.

The previous prime is 66260329. The next prime is 66260347. The reversal of 66260330 is 3306266.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 66260330.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64904 + ... + 65916.

It is an arithmetic number, because the mean of its divisors is an integer number (3869424).

Almost surely, 2^66260330 is an apocalyptic number.

66260330 is a deficient number, since it is larger than the sum of its proper divisors (57561238).

66260330 is a wasteful number, since it uses less digits than its factorization.

66260330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1262.

The product of its (nonzero) digits is 3888, while the sum is 26.

The square root of 66260330 is about 8140.0448401713. The cubic root of 66260330 is about 404.6546464040.

Adding to 66260330 its reverse (3306266), we get a palindrome (69566596).

The spelling of 66260330 in words is "sixty-six million, two hundred sixty thousand, three hundred thirty".