65996457896 has 32 divisors (see below), whose sum is σ = 132090782400. Its totient is φ = 30821172480.

The previous prime is 65996457893. The next prime is 65996457949. The reversal of 65996457896 is 69875469956.

It is not an unprimeable number, because it can be changed into a prime (65996457893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3046865 + ... + 3068448.

It is an arithmetic number, because the mean of its divisors is an integer number (4127836950).

Almost surely, 2^65996457896 is an apocalyptic number.

It is an amenable number.

65996457896 is an abundant number, since it is smaller than the sum of its proper divisors (66094324504).

65996457896 is a wasteful number, since it uses less digits than its factorization.

65996457896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6115409 (or 6115405 counting only the distinct ones).

The product of its digits is 881798400, while the sum is 74.

The spelling of 65996457896 in words is "sixty-five billion, nine hundred ninety-six million, four hundred fifty-seven thousand, eight hundred ninety-six".