2566823334640 has 80 divisors (see below), whose sum is σ = 6328169087328. Its totient is φ = 964918304768.

The previous prime is 2566823334629. The next prime is 2566823334683. The reversal of 2566823334640 is 464333286652.

2566823334640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 452797 + ... + 2310556.

Almost surely, 2^{2566823334640} is an apocalyptic number.

2566823334640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2566823334640 is an abundant number, since it is smaller than the sum of its proper divisors (3761345752688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2566823334640 is a wasteful number, since it uses less digits than its factorization.

2566823334640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2764066 (or 2764060 counting only the distinct ones).

The product of its (nonzero) digits is 14929920, while the sum is 52.

The spelling of 2566823334640 in words is "two trillion, five hundred sixty-six billion, eight hundred twenty-three million, three hundred thirty-four thousand, six hundred forty".