2666642024404 has 12 divisors (see below), whose sum is σ = 4693598246484. Its totient is φ = 1325613953984.

The previous prime is 2666642024359. The next prime is 2666642024411. The reversal of 2666642024404 is 4044202466662.

It can be written as a sum of positive squares in 2 ways, for example, as 1839815534404 + 826826490000 = 1356398^2 + 909300^2 .

It is a super-2 number, since 2×2666642024404² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1926763777 + ... + 1926765160.

It is an arithmetic number, because the mean of its divisors is an integer number (391133187207).

Almost surely, 2^{2666642024404} is an apocalyptic number.

It is an amenable number.

2666642024404 is a deficient number, since it is larger than the sum of its proper divisors (2026956222080).

2666642024404 is a wasteful number, since it uses less digits than its factorization.

2666642024404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3853529114 (or 3853529112 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 46.

The spelling of 2666642024404 in words is "two trillion, six hundred sixty-six billion, six hundred forty-two million, twenty-four thousand, four hundred four".