616544077044 has 48 divisors (see below), whose sum is σ = 1657063374848. Its totient is φ = 174768396768.

The previous prime is 616544077031. The next prime is 616544077099. The reversal of 616544077044 is 440770445616.

It is a junction number, because it is equal to n+sod(n) for n = 616544076984 and 616544077002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28886224 + ... + 28907559.

Almost surely, 2^616544077044 is an apocalyptic number.

It is an amenable number.

616544077044 is an abundant number, since it is smaller than the sum of its proper divisors (1040519297804).

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

616544077044 is a wasteful number, since it uses less digits than its factorization.

616544077044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57793924 (or 57793922 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 48.

The spelling of 616544077044 in words is "six hundred sixteen billion, five hundred forty-four million, seventy-seven thousand, forty-four".