2666452505605 has 32 divisors (see below), whose sum is σ = 3938934325248. Its totient is φ = 1692510811200.

The previous prime is 2666452505599. The next prime is 2666452505609. The reversal of 2666452505605 is 5065052546662.

It is not a de Polignac number, because 2666452505605 - 2²⁹ = 2665915634693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2666452505609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53400261 + ... + 53450170.

It is an arithmetic number, because the mean of its divisors is an integer number (123091697664).

Almost surely, 2^{2666452505605} is an apocalyptic number.

It is an amenable number.

2666452505605 is a deficient number, since it is larger than the sum of its proper divisors (1272481819643).

2666452505605 is a wasteful number, since it uses less digits than its factorization.

2666452505605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106850497.

The product of its (nonzero) digits is 12960000, while the sum is 52.

The spelling of 2666452505605 in words is "two trillion, six hundred sixty-six billion, four hundred fifty-two million, five hundred five thousand, six hundred five".