616411656 has 48 divisors (see below), whose sum is σ = 1907942400. Its totient is φ = 176117472.

The previous prime is 616411651. The next prime is 616411669. The reversal of 616411656 is 656114616.

It is a happy number.

616411656 is a `hidden beast` number, since 6 + 1 + 641 + 1 + 6 + 5 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 616411656.

It is not an unprimeable number, because it can be changed into a prime (616411651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 611016 + ... + 612023.

It is an arithmetic number, because the mean of its divisors is an integer number (39748800).

Almost surely, 2^616411656 is an apocalyptic number.

It is an amenable number.

616411656 is an abundant number, since it is smaller than the sum of its proper divisors (1291530744).

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

616411656 is a wasteful number, since it uses less digits than its factorization.

616411656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1223058 (or 1223051 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 616411656 is about 24827.6389533922. The cubic root of 616411656 is about 851.0536672585.

The spelling of 616411656 in words is "six hundred sixteen million, four hundred eleven thousand, six hundred fifty-six".