2566443000073 has 4 divisors (see below), whose sum is σ = 2586651212800. Its totient is φ = 2546234787348.

The previous prime is 2566443000071. The next prime is 2566443000089. The reversal of 2566443000073 is 3700003446652.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2566443000073 - 2¹ = 2566443000071 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2566443000071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10104106173 + ... + 10104106426.

It is an arithmetic number, because the mean of its divisors is an integer number (646662803200).

Almost surely, 2^{2566443000073} is an apocalyptic number.

It is an amenable number.

2566443000073 is a deficient number, since it is larger than the sum of its proper divisors (20208212727).

2566443000073 is a wasteful number, since it uses less digits than its factorization.

2566443000073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20208212726.

The product of its (nonzero) digits is 362880, while the sum is 40.

The spelling of 2566443000073 in words is "two trillion, five hundred sixty-six billion, four hundred forty-three million, seventy-three", and thus it is an aban number.