616262256064 has 168 divisors, whose sum is σ = 1535306769360. Its totient is φ = 243266494464.

The previous prime is 616262256041. The next prime is 616262256079. The reversal of 616262256064 is 460652262616.

616262256064 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×616262256064² (a number of 24 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 23 ways as a sum of consecutive naturals, for example, 19022472 + ... + 19054840.

It is an arithmetic number, because the mean of its divisors is an integer number (9138730770).

Almost surely, 2^616262256064 is an apocalyptic number.

616262256064 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 616262256064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (767653384680).

616262256064 is an abundant number, since it is smaller than the sum of its proper divisors (919044513296).

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

616262256064 is a wasteful number, since it uses less digits than its factorization.

616262256064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32875 (or 32858 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 46.

The spelling of 616262256064 in words is "six hundred sixteen billion, two hundred sixty-two million, two hundred fifty-six thousand, sixty-four".