65620716071711 has 8 divisors (see below), whose sum is σ = 67395410180400. Its totient is φ = 63846083081088.

The previous prime is 65620716071683. The next prime is 65620716071719. The reversal of 65620716071711 is 11717061702656.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65620716071711 is a prime.

It is a super-2 number, since 2×65620716071711² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65620716071711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65620716071719) 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, 13098986 + ... + 17401863.

It is an arithmetic number, because the mean of its divisors is an integer number (8424426272550).

Almost surely, 2^{65620716071711} is an apocalyptic number.

65620716071711 is a deficient number, since it is larger than the sum of its proper divisors (1774694108689).

65620716071711 is a wasteful number, since it uses less digits than its factorization.

65620716071711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30559033.

The product of its (nonzero) digits is 740880, while the sum is 50.

The spelling of 65620716071711 in words is "sixty-five trillion, six hundred twenty billion, seven hundred sixteen million, seventy-one thousand, seven hundred eleven".