2566994228897 has 8 divisors (see below), whose sum is σ = 2934037873536. Its totient is φ = 2200033130112.

The previous prime is 2566994228893. The next prime is 2566994228921. The reversal of 2566994228897 is 7988224996652.

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

It is a cyclic number.

It is not a de Polignac number, because 2566994228897 - 2² = 2566994228893 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2566994228893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20569808 + ... + 20694225.

It is an arithmetic number, because the mean of its divisors is an integer number (366754734192).

Almost surely, 2^{2566994228897} is an apocalyptic number.

It is an amenable number.

2566994228897 is a deficient number, since it is larger than the sum of its proper divisors (367043644639).

2566994228897 is an equidigital number, since it uses as much as digits as its factorization.

2566994228897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41272927.

The product of its digits is 1881169920, while the sum is 77.

The spelling of 2566994228897 in words is "two trillion, five hundred sixty-six billion, nine hundred ninety-four million, two hundred twenty-eight thousand, eight hundred ninety-seven".