66227513 has 8 divisors (see below), whose sum is σ = 72361056. Its totient is φ = 60112800.

The previous prime is 66227489. The next prime is 66227527. The reversal of 66227513 is 31572266.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 66227513 - 2¹⁴ = 66211129 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 66227513.

It is not an unprimeable number, because it can be changed into a prime (66227533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3245 + ... + 11957.

It is an arithmetic number, because the mean of its divisors is an integer number (9045132).

Almost surely, 2^66227513 is an apocalyptic number.

It is an amenable number.

66227513 is a deficient number, since it is larger than the sum of its proper divisors (6133543).

66227513 is a wasteful number, since it uses less digits than its factorization.

66227513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9415.

The product of its digits is 15120, while the sum is 32.

The square root of 66227513 is about 8138.0288153828. The cubic root of 66227513 is about 404.5878304349.

Adding to 66227513 its reverse (31572266), we get a palindrome (97799779).

The spelling of 66227513 in words is "sixty-six million, two hundred twenty-seven thousand, five hundred thirteen".