65673824961 has 8 divisors (see below), whose sum is σ = 87598191424. Its totient is φ = 43766004240.

The previous prime is 65673824959. The next prime is 65673824971. The reversal of 65673824961 is 16942837656.

65673824961 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.

It is not a de Polignac number, because 65673824961 - 2¹ = 65673824959 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65673824921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4127170 + ... + 4143051.

It is an arithmetic number, because the mean of its divisors is an integer number (10949773928).

Almost surely, 2^65673824961 is an apocalyptic number.

It is an amenable number.

65673824961 is a deficient number, since it is larger than the sum of its proper divisors (21924366463).

65673824961 is a wasteful number, since it uses less digits than its factorization.

65673824961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8272871.

The product of its digits is 13063680, while the sum is 57.

The spelling of 65673824961 in words is "sixty-five billion, six hundred seventy-three million, eight hundred twenty-four thousand, nine hundred sixty-one".