550563656644 has 12 divisors (see below), whose sum is σ = 975094669584. Its totient is φ = 271965179624.

The previous prime is 550563656563. The next prime is 550563656651. The reversal of 550563656644 is 446656365055.

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, 829161802 + ... + 829162465.

It is an arithmetic number, because the mean of its divisors is an integer number (81257889132).

Almost surely, 2^550563656644 is an apocalyptic number.

It is an amenable number.

550563656644 is a deficient number, since it is larger than the sum of its proper divisors (424531012940).

550563656644 is a wasteful number, since it uses less digits than its factorization.

550563656644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1658324354 (or 1658324352 counting only the distinct ones).

The product of its (nonzero) digits is 38880000, while the sum is 55.

The spelling of 550563656644 in words is "five hundred fifty billion, five hundred sixty-three million, six hundred fifty-six thousand, six hundred forty-four".