2666682454784 has 36 divisors (see below), whose sum is σ = 5323641361416. Its totient is φ = 1333167593472.

The previous prime is 2666682454783. The next prime is 2666682454817. The reversal of 2666682454784 is 4874542866662.

It is a super-2 number, since 2×2666682454784² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2666682454783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1302692 + ... + 2651484.

It is an arithmetic number, because the mean of its divisors is an integer number (147878926706).

Almost surely, 2^{2666682454784} is an apocalyptic number.

It is an amenable number.

2666682454784 is a deficient number, since it is larger than the sum of its proper divisors (2656958906632).

2666682454784 is an equidigital number, since it uses as much as digits as its factorization.

2666682454784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1356532 (or 1356518 counting only the distinct ones).

The product of its digits is 743178240, while the sum is 68.

The spelling of 2666682454784 in words is "two trillion, six hundred sixty-six billion, six hundred eighty-two million, four hundred fifty-four thousand, seven hundred eighty-four".