616112640128 has 16 divisors (see below), whose sum is σ = 1227411900510. Its totient is φ = 308056320000.

The previous prime is 616112640107. The next prime is 616112640133. The reversal of 616112640128 is 821046211616.

It can be written as a sum of positive squares in only one way, i.e., 351990650944 + 264121989184 = 593288^2 + 513928^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a junction number, because it is equal to n+sod(n) for n = 616112640091 and 616112640100.

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 as a sum of consecutive naturals, namely, 2406689873 + ... + 2406690128.

Almost surely, 2^616112640128 is an apocalyptic number.

It is an amenable number.

616112640128 is a deficient number, since it is larger than the sum of its proper divisors (611299260382).

616112640128 is an equidigital number, since it uses as much as digits as its factorization.

616112640128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4813380015 (or 4813380003 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 38.

The spelling of 616112640128 in words is "six hundred sixteen billion, one hundred twelve million, six hundred forty thousand, one hundred twenty-eight".