616673444550 has 48 divisors (see below), whose sum is σ = 1539614293200. Its totient is φ = 163342579840.

The previous prime is 616673444509. The next prime is 616673444593. The reversal of 616673444550 is 55444376616.

It is a super-2 number, since 2×616673444550² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 616673444493 and 616673444502.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 13773477 + ... + 13818176.

It is an arithmetic number, because the mean of its divisors is an integer number (32075297775).

Almost surely, 2^616673444550 is an apocalyptic number.

616673444550 is an abundant number, since it is smaller than the sum of its proper divisors (922940848650).

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

616673444550 is a wasteful number, since it uses less digits than its factorization.

616673444550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27591817 (or 27591812 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 51.

The spelling of 616673444550 in words is "six hundred sixteen billion, six hundred seventy-three million, four hundred forty-four thousand, five hundred fifty".