66412313 has 8 divisors (see below), whose sum is σ = 72565536. Its totient is φ = 60278400.

The previous prime is 66412309. The next prime is 66412321. The reversal of 66412313 is 31321466.

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 66412313 - 2² = 66412309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66412613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2918 + ... + 11888.

It is an arithmetic number, because the mean of its divisors is an integer number (9070692).

Almost surely, 2^66412313 is an apocalyptic number.

It is an amenable number.

66412313 is a deficient number, since it is larger than the sum of its proper divisors (6153223).

66412313 is a wasteful number, since it uses less digits than its factorization.

66412313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9655.

The product of its digits is 2592, while the sum is 26.

The square root of 66412313 is about 8149.3750067106. The cubic root of 66412313 is about 404.9637990302.

Adding to 66412313 its reverse (31321466), we get a palindrome (97733779).

The spelling of 66412313 in words is "sixty-six million, four hundred twelve thousand, three hundred thirteen".