2163442000561 has 8 divisors (see below), whose sum is σ = 2280745995264. Its totient is φ = 2049107727360.

The previous prime is 2163442000537. The next prime is 2163442000619. The reversal of 2163442000561 is 1650002443612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2163442000561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2163442060561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 742428880 + ... + 742431793.

It is an arithmetic number, because the mean of its divisors is an integer number (285093249408).

Almost surely, 2^{2163442000561} is an apocalyptic number.

It is an amenable number.

2163442000561 is a deficient number, since it is larger than the sum of its proper divisors (117303994703).

2163442000561 is a wasteful number, since it uses less digits than its factorization.

2163442000561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1484860751.

The product of its (nonzero) digits is 34560, while the sum is 34.

The spelling of 2163442000561 in words is "two trillion, one hundred sixty-three billion, four hundred forty-two million, five hundred sixty-one", and thus it is an aban number.