5646255305561 has 32 divisors (see below), whose sum is σ = 6543325152000. Its totient is φ = 4825851402240.

The previous prime is 5646255305521. The next prime is 5646255305567. The reversal of 5646255305561 is 1655035526465.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 5646255305561 - 2³⁰ = 5645181563737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5646255305567) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3192866 + ... + 4635396.

It is an arithmetic number, because the mean of its divisors is an integer number (204478911000).

Almost surely, 2^{5646255305561} is an apocalyptic number.

It is an amenable number.

5646255305561 is a deficient number, since it is larger than the sum of its proper divisors (897069846439).

5646255305561 is a wasteful number, since it uses less digits than its factorization.

5646255305561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1442849.

The product of its (nonzero) digits is 16200000, while the sum is 53.

The spelling of 5646255305561 in words is "five trillion, six hundred forty-six billion, two hundred fifty-five million, three hundred five thousand, five hundred sixty-one".