2566443622 has 4 divisors (see below), whose sum is σ = 3849665436. Its totient is φ = 1283221810.

The previous prime is 2566443599. The next prime is 2566443631. The reversal of 2566443622 is 2263446652.

2566443622 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 641610904 + ... + 641610907.

It is an arithmetic number, because the mean of its divisors is an integer number (962416359).

Almost surely, 2^2566443622 is an apocalyptic number.

2566443622 is a deficient number, since it is larger than the sum of its proper divisors (1283221814).

2566443622 is a wasteful number, since it uses less digits than its factorization.

2566443622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1283221813.

The product of its digits is 414720, while the sum is 40.

The square root of 2566443622 is about 50660.0791748296. The cubic root of 2566443622 is about 1369.1275497287.

The spelling of 2566443622 in words is "two billion, five hundred sixty-six million, four hundred forty-three thousand, six hundred twenty-two".