66263122 has 16 divisors (see below), whose sum is σ = 101165400. Its totient is φ = 32545152.

The previous prime is 66263111. The next prime is 66263123. The reversal of 66263122 is 22136266.

It is a happy number.

66263122 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 4 ways, for example, as 64464841 + 1798281 = 8029^2 + 1341^2 .

It is not an unprimeable number, because it can be changed into a prime (66263123) 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 7 ways as a sum of consecutive naturals, for example, 42004 + ... + 43552.

Almost surely, 2^66263122 is an apocalyptic number.

66263122 is a deficient number, since it is larger than the sum of its proper divisors (34902278).

66263122 is a wasteful number, since it uses less digits than its factorization.

66263122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1917.

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

The square root of 66263122 is about 8140.2163361916. The cubic root of 66263122 is about 404.6603299449.

Adding to 66263122 its reverse (22136266), we get a palindrome (88399388).

The spelling of 66263122 in words is "sixty-six million, two hundred sixty-three thousand, one hundred twenty-two".