66063830 has 16 divisors (see below), whose sum is σ = 135902880. Its totient is φ = 22650432.

The previous prime is 66063799. The next prime is 66063841. The reversal of 66063830 is 3836066.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 471815 + ... + 471954.

It is an arithmetic number, because the mean of its divisors is an integer number (8493930).

Almost surely, 2^66063830 is an apocalyptic number.

66063830 is an abundant number, since it is smaller than the sum of its proper divisors (69839050).

66063830 is a wasteful number, since it uses less digits than its factorization.

66063830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943783.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 66063830 is about 8127.9659202041. The cubic root of 66063830 is about 404.2542390512.

Adding to 66063830 its reverse (3836066), we get a palindrome (69899896).

The spelling of 66063830 in words is "sixty-six million, sixty-three thousand, eight hundred thirty".