66336413 has 8 divisors (see below), whose sum is σ = 77933856. Its totient is φ = 55666800.

The previous prime is 66336407. The next prime is 66336421. The reversal of 66336413 is 31463366.

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

It is a cyclic number.

It is not a de Polignac number, because 66336413 - 2⁸ = 66336157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66336413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66336433) 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, 231803 + ... + 232088.

It is an arithmetic number, because the mean of its divisors is an integer number (9741732).

Almost surely, 2^66336413 is an apocalyptic number.

It is an amenable number.

66336413 is a deficient number, since it is larger than the sum of its proper divisors (11597443).

66336413 is a wasteful number, since it uses less digits than its factorization.

66336413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463915.

The product of its digits is 23328, while the sum is 32.

The square root of 66336413 is about 8144.7168766017. The cubic root of 66336413 is about 404.8094678644.

Adding to 66336413 its reverse (31463366), we get a palindrome (97799779).

The spelling of 66336413 in words is "sixty-six million, three hundred thirty-six thousand, four hundred thirteen".