65971266 has 8 divisors (see below), whose sum is σ = 131942544. Its totient is φ = 21990420.

The previous prime is 65971261. The next prime is 65971267. The reversal of 65971266 is 66217956.

65971266 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

65971266 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (65971261) 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, 5497600 + ... + 5497611.

It is an arithmetic number, because the mean of its divisors is an integer number (16492818).

Almost surely, 2^65971266 is an apocalyptic number.

65971266 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65971266 is a wasteful number, since it uses less digits than its factorization.

65971266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10995216.

The product of its digits is 136080, while the sum is 42.

The square root of 65971266 is about 8122.2697566629. The cubic root of 65971266 is about 404.0653465842.

The spelling of 65971266 in words is "sixty-five million, nine hundred seventy-one thousand, two hundred sixty-six".