65164722855145 has 16 divisors (see below), whose sum is σ = 78292473336000. Its totient is φ = 52068597968448.

The previous prime is 65164722855091. The next prime is 65164722855191. The reversal of 65164722855145 is 54155822746156.

It is a cyclic number.

It is not a de Polignac number, because 65164722855145 - 2¹³ = 65164722846953 is a prime.

It is a super-2 number, since 2×65164722855145² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20633371 + ... + 23581039.

It is an arithmetic number, because the mean of its divisors is an integer number (4893279583500).

Almost surely, 2^{65164722855145} is an apocalyptic number.

It is an amenable number.

65164722855145 is a deficient number, since it is larger than the sum of its proper divisors (13127750480855).

65164722855145 is a wasteful number, since it uses less digits than its factorization.

65164722855145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2953032.

The product of its digits is 80640000, while the sum is 61.

The spelling of 65164722855145 in words is "sixty-five trillion, one hundred sixty-four billion, seven hundred twenty-two million, eight hundred fifty-five thousand, one hundred forty-five".