66115230 has 32 divisors (see below), whose sum is σ = 158899104. Its totient is φ = 17606016.

The previous prime is 66115207. The next prime is 66115249. The reversal of 66115230 is 3251166.

It is a self number, because there is not a number n which added to its sum of digits gives 66115230.

It is a congruent number.

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, 32524 + ... + 34496.

It is an arithmetic number, because the mean of its divisors is an integer number (4965597).

Almost surely, 2^66115230 is an apocalyptic number.

66115230 is an abundant number, since it is smaller than the sum of its proper divisors (92783874).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66115230 is a wasteful number, since it uses less digits than its factorization.

66115230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3100.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 66115230 is about 8131.1272281277. The cubic root of 66115230 is about 404.3590532456.

Adding to 66115230 its reverse (3251166), we get a palindrome (69366396).

The spelling of 66115230 in words is "sixty-six million, one hundred fifteen thousand, two hundred thirty".