66314315 has 4 divisors (see below), whose sum is σ = 79577184. Its totient is φ = 53051448.

The previous prime is 66314293. The next prime is 66314317. The reversal of 66314315 is 51341366.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51341366 = 2 ⋅25670683.

It is a cyclic number.

It is not a de Polignac number, because 66314315 - 2⁶ = 66314251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66314317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6631427 + ... + 6631436.

It is an arithmetic number, because the mean of its divisors is an integer number (19894296).

Almost surely, 2^66314315 is an apocalyptic number.

66314315 is a deficient number, since it is larger than the sum of its proper divisors (13262869).

66314315 is a wasteful number, since it uses less digits than its factorization.

66314315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13262868.

The product of its digits is 6480, while the sum is 29.

The square root of 66314315 is about 8143.3601786977. The cubic root of 66314315 is about 404.7645128002.

The spelling of 66314315 in words is "sixty-six million, three hundred fourteen thousand, three hundred fifteen".