65012116671 has 8 divisors (see below), whose sum is σ = 96314246960. Its totient is φ = 43341411096.

The previous prime is 65012116661. The next prime is 65012116691. The reversal of 65012116671 is 17661121056.

It is a happy number.

65012116671 is a `hidden beast` number, since 6 + 501 + 21 + 1 + 66 + 71 = 666.

It is not a de Polignac number, because 65012116671 - 2¹⁰ = 65012115647 is a prime.

It is a super-2 number, since 2×65012116671² (a number of 22 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 (65012116651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1203928060 + ... + 1203928113.

It is an arithmetic number, because the mean of its divisors is an integer number (12039280870).

Almost surely, 2^65012116671 is an apocalyptic number.

65012116671 is a deficient number, since it is larger than the sum of its proper divisors (31302130289).

65012116671 is a wasteful number, since it uses less digits than its factorization.

65012116671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2407856182 (or 2407856176 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The spelling of 65012116671 in words is "sixty-five billion, twelve million, one hundred sixteen thousand, six hundred seventy-one".