65999896 has 32 divisors (see below), whose sum is σ = 126593280. Its totient is φ = 32250400.

The previous prime is 65999821. The next prime is 65999909. The reversal of 65999896 is 69899956.

65999896 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 73965 + ... + 74851.

It is an arithmetic number, because the mean of its divisors is an integer number (3956040).

Almost surely, 2^65999896 is an apocalyptic number.

It is an amenable number.

65999896 is a deficient number, since it is larger than the sum of its proper divisors (60593384).

65999896 is a wasteful number, since it uses less digits than its factorization.

65999896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1095 (or 1091 counting only the distinct ones).

The product of its digits is 9447840, while the sum is 61.

The square root of 65999896 is about 8124.0320038759. The cubic root of 65999896 is about 404.1237897950.

The spelling of 65999896 in words is "sixty-five million, nine hundred ninety-nine thousand, eight hundred ninety-six".