65121712101016 has 32 divisors (see below), whose sum is σ = 122193909134640. Its totient is φ = 32536674430848.

The previous prime is 65121712100999. The next prime is 65121712101031. The reversal of 65121712101016 is 61010121712156.

It is a super-2 number, since 2×65121712101016² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110947926 + ... + 111533338.

Almost surely, 2^{65121712101016} is an apocalyptic number.

It is an amenable number.

65121712101016 is a deficient number, since it is larger than the sum of its proper divisors (57072197033624).

65121712101016 is a wasteful number, since it uses less digits than its factorization.

65121712101016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595723 (or 595719 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 34.

The spelling of 65121712101016 in words is "sixty-five trillion, one hundred twenty-one billion, seven hundred twelve million, one hundred one thousand, sixteen".