66115714 has 8 divisors (see below), whose sum is σ = 113341248. Its totient is φ = 28335300.

The previous prime is 66115681. The next prime is 66115723. The reversal of 66115714 is 41751166.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2361262 + ... + 2361289.

It is an arithmetic number, because the mean of its divisors is an integer number (14167656).

Almost surely, 2^66115714 is an apocalyptic number.

66115714 is a deficient number, since it is larger than the sum of its proper divisors (47225534).

66115714 is a wasteful number, since it uses less digits than its factorization.

66115714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4722560.

The product of its digits is 5040, while the sum is 31.

The square root of 66115714 is about 8131.1569902444. The cubic root of 66115714 is about 404.3600399537.

The spelling of 66115714 in words is "sixty-six million, one hundred fifteen thousand, seven hundred fourteen".