55650320644 has 12 divisors (see below), whose sum is σ = 97394722768. Its totient is φ = 27823257000.

The previous prime is 55650320599. The next prime is 55650320659. The reversal of 55650320644 is 44602305655.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 55650320597 and 55650320606.

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, 409002 + ... + 527809.

Almost surely, 2^55650320644 is an apocalyptic number.

It is an amenable number.

55650320644 is a deficient number, since it is larger than the sum of its proper divisors (41744402124).

55650320644 is a wasteful number, since it uses less digits than its factorization.

55650320644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 951666 (or 951664 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 40.

The spelling of 55650320644 in words is "fifty-five billion, six hundred fifty million, three hundred twenty thousand, six hundred forty-four".