65836616976 has 480 divisors, whose sum is σ = 214892496000. Its totient is φ = 18646474752.

The previous prime is 65836616939. The next prime is 65836616981. The reversal of 65836616976 is 67961663856.

It is a happy number.

65836616976 is a `hidden beast` number, since 6 + 5 + 8 + 3 + 6 + 616 + 9 + 7 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 287496030 + ... + 287496258.

It is an arithmetic number, because the mean of its divisors is an integer number (447692700).

Almost surely, 2^65836616976 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65836616976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107446248000).

65836616976 is an abundant number, since it is smaller than the sum of its proper divisors (149055879024).

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

65836616976 is a wasteful number, since it uses less digits than its factorization.

65836616976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471 (or 462 counting only the distinct ones).

The product of its digits is 58786560, while the sum is 63.

The spelling of 65836616976 in words is "sixty-five billion, eight hundred thirty-six million, six hundred sixteen thousand, nine hundred seventy-six".