616400034644 has 12 divisors (see below), whose sum is σ = 1078835784768. Its totient is φ = 308161239000.

The previous prime is 616400034623. The next prime is 616400034671. The reversal of 616400034644 is 446430004616.

It is a junction number, because it is equal to n+sod(n) for n = 616400034598 and 616400034607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9658802 + ... + 9722409.

It is an arithmetic number, because the mean of its divisors is an integer number (89902982064).

Almost surely, 2^616400034644 is an apocalyptic number.

It is an amenable number.

616400034644 is a deficient number, since it is larger than the sum of its proper divisors (462435750124).

616400034644 is a wasteful number, since it uses less digits than its factorization.

616400034644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19389166 (or 19389164 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 38.

The spelling of 616400034644 in words is "six hundred sixteen billion, four hundred million, thirty-four thousand, six hundred forty-four".