66253411 has 16 divisors (see below), whose sum is σ = 78267904. Its totient is φ = 54903744.

The previous prime is 66253393. The next prime is 66253423. The reversal of 66253411 is 11435266.

It is not a de Polignac number, because 66253411 - 2¹⁷ = 66122339 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 66253411.

It is not an unprimeable number, because it can be changed into a prime (66253211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29935 + ... + 32071.

It is an arithmetic number, because the mean of its divisors is an integer number (4891744).

Almost surely, 2^66253411 is an apocalyptic number.

66253411 is a deficient number, since it is larger than the sum of its proper divisors (12014493).

66253411 is a wasteful number, since it uses less digits than its factorization.

66253411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2290.

The product of its digits is 4320, while the sum is 28.

The square root of 66253411 is about 8139.6198314172. The cubic root of 66253411 is about 404.6405610382.

Adding to 66253411 its reverse (11435266), we get a palindrome (77688677).

The spelling of 66253411 in words is "sixty-six million, two hundred fifty-three thousand, four hundred eleven".