65172431606 has 8 divisors (see below), whose sum is σ = 97834024200. Its totient is φ = 32561090208.

The previous prime is 65172431591. The next prime is 65172431617. The reversal of 65172431606 is 60613427156.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 12559556 + ... + 12564743.

It is an arithmetic number, because the mean of its divisors is an integer number (12229253025).

Almost surely, 2^65172431606 is an apocalyptic number.

65172431606 is a deficient number, since it is larger than the sum of its proper divisors (32661592594).

65172431606 is a wasteful number, since it uses less digits than its factorization.

65172431606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25125598.

The product of its (nonzero) digits is 181440, while the sum is 41.

The spelling of 65172431606 in words is "sixty-five billion, one hundred seventy-two million, four hundred thirty-one thousand, six hundred six".