65016622944 has 576 divisors, whose sum is σ = 251571096000. Its totient is φ = 16136257536.

The previous prime is 65016622901. The next prime is 65016622963. The reversal of 65016622944 is 44922661056.

65016622944 is a `hidden beast` number, since 6 + 5 + 0 + 16 + 622 + 9 + 4 + 4 = 666.

It is a super-2 number, since 2×65016622944² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 65016622944.

It is a congruent number.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 9352782 + ... + 9359730.

It is an arithmetic number, because the mean of its divisors is an integer number (436755375).

Almost surely, 2^65016622944 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 65016622944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125785548000).

65016622944 is an abundant number, since it is smaller than the sum of its proper divisors (186554473056).

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

65016622944 is a wasteful number, since it uses less digits than its factorization.

65016622944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7012 (or 6991 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 65016622944 in words is "sixty-five billion, sixteen million, six hundred twenty-two thousand, nine hundred forty-four".