66134260 has 12 divisors (see below), whose sum is σ = 138881988. Its totient is φ = 26453696.

The previous prime is 66134251. The next prime is 66134261. The reversal of 66134260 is 6243166.

66134260 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 2 ways, for example, as 31606884 + 34527376 = 5622^2 + 5876^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66134261) 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 3 ways as a sum of consecutive naturals, for example, 1653337 + ... + 1653376.

It is an arithmetic number, because the mean of its divisors is an integer number (11573499).

Almost surely, 2^66134260 is an apocalyptic number.

It is an amenable number.

66134260 is an abundant number, since it is smaller than the sum of its proper divisors (72747728).

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

66134260 is a wasteful number, since it uses less digits than its factorization.

66134260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3306722 (or 3306720 counting only the distinct ones).

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

The square root of 66134260 is about 8132.2973383909. The cubic root of 66134260 is about 404.3978451882.

The spelling of 66134260 in words is "sixty-six million, one hundred thirty-four thousand, two hundred sixty".