65606310056431 has 4 divisors (see below), whose sum is σ = 65613143344864. Its totient is φ = 65599476768000.

The previous prime is 65606310056387. The next prime is 65606310056447. The reversal of 65606310056431 is 13465001360656.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65606310056431 - 2²¹ = 65606307959279 is a prime.

It is a super-2 number, since 2×65606310056431² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65606310056461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3416629815 + ... + 3416649016.

It is an arithmetic number, because the mean of its divisors is an integer number (16403285836216).

Almost surely, 2^{65606310056431} is an apocalyptic number.

65606310056431 is a deficient number, since it is larger than the sum of its proper divisors (6833288433).

65606310056431 is an equidigital number, since it uses as much as digits as its factorization.

65606310056431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6833288432.

The product of its (nonzero) digits is 1166400, while the sum is 46.

The spelling of 65606310056431 in words is "sixty-five trillion, six hundred six billion, three hundred ten million, fifty-six thousand, four hundred thirty-one".