66264130 has 32 divisors (see below), whose sum is σ = 130656240. Its totient is φ = 24084480.

The previous prime is 66264091. The next prime is 66264131. The reversal of 66264130 is 3146266.

66264130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 25674489 + 40589641 = 5067^2 + 6371^2 .

It is not an unprimeable number, because it can be changed into a prime (66264131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1791 + ... + 11650.

Almost surely, 2^66264130 is an apocalyptic number.

66264130 is a deficient number, since it is larger than the sum of its proper divisors (64392110).

66264130 is a wasteful number, since it uses less digits than its factorization.

66264130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13494.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 66264130 is about 8140.2782507725. The cubic root of 66264130 is about 404.6623818432.

It can be divided in two parts, 66 and 264130, that added together give a square (264196 = 514²).

The spelling of 66264130 in words is "sixty-six million, two hundred sixty-four thousand, one hundred thirty".