616605616360 has 32 divisors (see below), whose sum is σ = 1391292874440. Its totient is φ = 245943537664.

The previous prime is 616605616337. The next prime is 616605616379. The reversal of 616605616360 is 63616506616.

It can be written as a sum of positive squares in 4 ways, for example, as 583124667876 + 33480948484 = 763626^2 + 182978^2 .

It is a super-2 number, since 2×616605616360² (a number of 24 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 616605616360.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21820357 + ... + 21848596.

Almost surely, 2^616605616360 is an apocalyptic number.

It is an amenable number.

616605616360 is an abundant number, since it is smaller than the sum of its proper divisors (774687258080).

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

616605616360 is a wasteful number, since it uses less digits than its factorization.

616605616360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43669317 (or 43669313 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 46.

The spelling of 616605616360 in words is "six hundred sixteen billion, six hundred five million, six hundred sixteen thousand, three hundred sixty".