616505360 has 20 divisors (see below), whose sum is σ = 1433375148. Its totient is φ = 246602112.

The previous prime is 616505353. The next prime is 616505387. The reversal of 616505360 is 63505616.

It can be written as a sum of positive squares in 2 ways, for example, as 425844496 + 190660864 = 20636^2 + 13808^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3853079 + ... + 3853238.

Almost surely, 2^616505360 is an apocalyptic number.

It is an amenable number.

616505360 is an abundant number, since it is smaller than the sum of its proper divisors (816869788).

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

616505360 is a wasteful number, since it uses less digits than its factorization.

616505360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7706330 (or 7706324 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 616505360 is about 24829.5259721163. The cubic root of 616505360 is about 851.0967894650.

The spelling of 616505360 in words is "six hundred sixteen million, five hundred five thousand, three hundred sixty".