2566823334642 has 48 divisors (see below), whose sum is σ = 6356089958400. Its totient is φ = 733361196096.

The previous prime is 2566823334629. The next prime is 2566823334683. The reversal of 2566823334642 is 2464333286652.

2566823334642 is a `hidden beast` number, since 2 + 5 + 6 + 68 + 233 + 346 + 4 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5885734 + ... + 6306782.

It is an arithmetic number, because the mean of its divisors is an integer number (132418540800).

Almost surely, 2^{2566823334642} is an apocalyptic number.

2566823334642 is an abundant number, since it is smaller than the sum of its proper divisors (3789266623758).

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

2566823334642 is a wasteful number, since it uses less digits than its factorization.

2566823334642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469447 (or 469444 counting only the distinct ones).

The product of its digits is 29859840, while the sum is 54.

The spelling of 2566823334642 in words is "two trillion, five hundred sixty-six billion, eight hundred twenty-three million, three hundred thirty-four thousand, six hundred forty-two".