65712418 has 8 divisors (see below), whose sum is σ = 99544860. Its totient is φ = 32530800.

The previous prime is 65712397. The next prime is 65712419. The reversal of 65712418 is 81421756.

65712418 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 47844889 + 17867529 = 6917^2 + 4227^2 .

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

It is not an unprimeable number, because it can be changed into a prime (65712419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162453 + ... + 162856.

Almost surely, 2^65712418 is an apocalyptic number.

65712418 is a deficient number, since it is larger than the sum of its proper divisors (33832442).

65712418 is a wasteful number, since it uses less digits than its factorization.

65712418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325412.

The product of its digits is 13440, while the sum is 34.

The square root of 65712418 is about 8106.3196334712. The cubic root of 65712418 is about 403.5361838868.

The spelling of 65712418 in words is "sixty-five million, seven hundred twelve thousand, four hundred eighteen".