65627314657 has 8 divisors (see below), whose sum is σ = 65918332296. Its totient is φ = 65336573952.

The previous prime is 65627314589. The next prime is 65627314721. The reversal of 65627314657 is 75641372656.

It can be written as a sum of positive squares in 4 ways, for example, as 4373044641 + 61254270016 = 66129^2 + 247496^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 65627314657 - 2¹¹ = 65627312609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65627314757) 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, 413193 + ... + 549529.

It is an arithmetic number, because the mean of its divisors is an integer number (8239791537).

Almost surely, 2^65627314657 is an apocalyptic number.

It is an amenable number.

65627314657 is a deficient number, since it is larger than the sum of its proper divisors (291017639).

65627314657 is a wasteful number, since it uses less digits than its factorization.

65627314657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138467.

The product of its digits is 6350400, while the sum is 52.

The spelling of 65627314657 in words is "sixty-five billion, six hundred twenty-seven million, three hundred fourteen thousand, six hundred fifty-seven".