616647544968 has 128 divisors (see below), whose sum is σ = 1948657777920. Its totient is φ = 158236830720.

The previous prime is 616647544951. The next prime is 616647544973. The reversal of 616647544968 is 869445746616.

It is a junction number, because it is equal to n+sod(n) for n = 616647544899 and 616647544908.

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 31 ways as a sum of consecutive naturals, for example, 3734703 + ... + 3896318.

It is an arithmetic number, because the mean of its divisors is an integer number (15223888890).

Almost surely, 2^616647544968 is an apocalyptic number.

It is an amenable number.

616647544968 is an abundant number, since it is smaller than the sum of its proper divisors (1332010232952).

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

616647544968 is a wasteful number, since it uses less digits than its factorization.

616647544968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7631087 (or 7631083 counting only the distinct ones).

The product of its digits is 209018880, while the sum is 66.

The spelling of 616647544968 in words is "six hundred sixteen billion, six hundred forty-seven million, five hundred forty-four thousand, nine hundred sixty-eight".