616786056 has 128 divisors (see below), whose sum is σ = 1818288000. Its totient is φ = 193176576.

The previous prime is 616786039. The next prime is 616786057. The reversal of 616786056 is 650687616.

It is not an unprimeable number, because it can be changed into a prime (616786057) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 561700 + ... + 562796.

It is an arithmetic number, because the mean of its divisors is an integer number (14205375).

Almost surely, 2^616786056 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 616786056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (909144000).

616786056 is an abundant number, since it is smaller than the sum of its proper divisors (1201501944).

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

616786056 is a wasteful number, since it uses less digits than its factorization.

616786056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1268 (or 1258 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 616786056 is about 24835.1777928003. The cubic root of 616786056 is about 851.2259384998.

The spelling of 616786056 in words is "six hundred sixteen million, seven hundred eighty-six thousand, fifty-six".