5561046605646 has 120 divisors (see below), whose sum is σ = 14497494275880. Its totient is φ = 1588628891808.

The previous prime is 5561046605551. The next prime is 5561046605671. The reversal of 5561046605646 is 6465066401655.

5561046605646 is a `hidden beast` number, since 5 + 5 + 6 + 10 + 4 + 6 + 60 + 564 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 5561046605592 and 5561046605601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 55857600 + ... + 55957068.

It is an arithmetic number, because the mean of its divisors is an integer number (120812452299).

Almost surely, 2^{5561046605646} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5561046605646, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7248747137940).

5561046605646 is an abundant number, since it is smaller than the sum of its proper divisors (8936447670234).

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

5561046605646 is a wasteful number, since it uses less digits than its factorization.

5561046605646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106540 (or 106524 counting only the distinct ones).

The product of its (nonzero) digits is 15552000, while the sum is 54.

The spelling of 5561046605646 in words is "five trillion, five hundred sixty-one billion, forty-six million, six hundred five thousand, six hundred forty-six".