616350430644 has 24 divisors (see below), whose sum is σ = 1548778005600. Its totient is φ = 189646286304.

The previous prime is 616350430643. The next prime is 616350430673. The reversal of 616350430644 is 446034053616.

It is a junction number, because it is equal to n+sod(n) for n = 616350430596 and 616350430605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616350430643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1975481994 + ... + 1975482305.

It is an arithmetic number, because the mean of its divisors is an integer number (64532416900).

Almost surely, 2^616350430644 is an apocalyptic number.

It is an amenable number.

616350430644 is an abundant number, since it is smaller than the sum of its proper divisors (932427574956).

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

616350430644 is a wasteful number, since it uses less digits than its factorization.

616350430644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3950964319 (or 3950964317 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 42.

The spelling of 616350430644 in words is "six hundred sixteen billion, three hundred fifty million, four hundred thirty thousand, six hundred forty-four".