66260630 has 16 divisors (see below), whose sum is σ = 119607840. Its totient is φ = 26428992.

The previous prime is 66260629. The next prime is 66260639. The reversal of 66260630 is 3606266.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 66260593 and 66260602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66260639) 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, 5639 + ... + 12818.

It is an arithmetic number, because the mean of its divisors is an integer number (7475490).

Almost surely, 2^66260630 is an apocalyptic number.

66260630 is a deficient number, since it is larger than the sum of its proper divisors (53347210).

66260630 is a wasteful number, since it uses less digits than its factorization.

66260630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18823.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 66260630 is about 8140.0632675674. The cubic root of 66260630 is about 404.6552571073.

Adding to 66260630 its reverse (3606266), we get a palindrome (69866896).

The spelling of 66260630 in words is "sixty-six million, two hundred sixty thousand, six hundred thirty".