66336115 has 4 divisors (see below), whose sum is σ = 79603344. Its totient is φ = 53068888.

The previous prime is 66336107. The next prime is 66336121. The reversal of 66336115 is 51163366.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 66336115 - 2³ = 66336107 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

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, 6633607 + ... + 6633616.

It is an arithmetic number, because the mean of its divisors is an integer number (19900836).

Almost surely, 2^66336115 is an apocalyptic number.

66336115 is a deficient number, since it is larger than the sum of its proper divisors (13267229).

66336115 is a wasteful number, since it uses less digits than its factorization.

66336115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13267228.

The product of its digits is 9720, while the sum is 31.

The square root of 66336115 is about 8144.6985825137. The cubic root of 66336115 is about 404.8088616946.

The spelling of 66336115 in words is "sixty-six million, three hundred thirty-six thousand, one hundred fifteen".