65710244641 has 4 divisors (see below), whose sum is σ = 67829929984. Its totient is φ = 63590559300.

The previous prime is 65710244549. The next prime is 65710244701. The reversal of 65710244641 is 14644201756.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 65710244641 - 2¹¹ = 65710242593 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65710244594 and 65710244603.

It is not an unprimeable number, because it can be changed into a prime (65710244441) 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, 1059842625 + ... + 1059842686.

It is an arithmetic number, because the mean of its divisors is an integer number (16957482496).

Almost surely, 2^65710244641 is an apocalyptic number.

It is an amenable number.

65710244641 is a deficient number, since it is larger than the sum of its proper divisors (2119685343).

65710244641 is a wasteful number, since it uses less digits than its factorization.

65710244641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2119685342.

The product of its (nonzero) digits is 161280, while the sum is 40.

The spelling of 65710244641 in words is "sixty-five billion, seven hundred ten million, two hundred forty-four thousand, six hundred forty-one".