66315 has 8 divisors (see below), whose sum is σ = 106128. Its totient is φ = 35360.

The previous prime is 66301. The next prime is 66337. The reversal of 66315 is 51366.

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

It is not a de Polignac number, because 66315 - 2¹² = 62219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66291 and 66300.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2196 + ... + 2225.

It is an arithmetic number, because the mean of its divisors is an integer number (13266).

2⁶⁶³¹⁵ is an apocalyptic number.

66315 is a deficient number, since it is larger than the sum of its proper divisors (39813).

66315 is a wasteful number, since it uses less digits than its factorization.

66315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4429.

The product of its digits is 540, while the sum is 21.

The square root of 66315 is about 257.5169897308. The cubic root of 66315 is about 40.4765906480.

The spelling of 66315 in words is "sixty-six thousand, three hundred fifteen".