2666662588564 has 24 divisors (see below), whose sum is σ = 5290140359840. Its totient is φ = 1165990119264.

The previous prime is 2666662588549. The next prime is 2666662588613. The reversal of 2666662588564 is 4658852666662.

2666662588564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2666662588564² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2666662588493 and 2666662588502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1349524614 + ... + 1349526589.

Almost surely, 2^{2666662588564} is an apocalyptic number.

It is an amenable number.

2666662588564 is a deficient number, since it is larger than the sum of its proper divisors (2623477771276).

2666662588564 is a wasteful number, since it uses less digits than its factorization.

2666662588564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2699051239 (or 2699051237 counting only the distinct ones).

The product of its digits is 1194393600, while the sum is 70.

The spelling of 2666662588564 in words is "two trillion, six hundred sixty-six billion, six hundred sixty-two million, five hundred eighty-eight thousand, five hundred sixty-four".