65273000016 has 160 divisors (see below), whose sum is σ = 199527586560. Its totient is φ = 17990848512.

The previous prime is 65273000003. The next prime is 65273000017. The reversal of 65273000016 is 61000037256.

65273000016 is a nontrivial binomial coefficient, being equal to C(361312, 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65273000017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15714996 + ... + 15719148.

It is an arithmetic number, because the mean of its divisors is an integer number (1247047416).

Almost surely, 2^65273000016 is an apocalyptic number.

65273000016 is the 361311-st triangular number and also the 180656-th hexagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65273000016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99763793280).

65273000016 is an abundant number, since it is smaller than the sum of its proper divisors (134254586544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65273000016 is a wasteful number, since it uses less digits than its factorization.

65273000016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5813 (or 5807 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 30.

The spelling of 65273000016 in words is "sixty-five billion, two hundred seventy-three million, sixteen", and thus it is an aban number.