2666240041771 has 4 divisors (see below), whose sum is σ = 2782163521872. Its totient is φ = 2550316561672.

The previous prime is 2666240041709. The next prime is 2666240041951. The reversal of 2666240041771 is 1771400426662.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2666240041771 - 2¹⁵ = 2666240009003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2666240441771) 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 3 ways as a sum of consecutive naturals, for example, 57961740016 + ... + 57961740061.

It is an arithmetic number, because the mean of its divisors is an integer number (695540880468).

Almost surely, 2^{2666240041771} is an apocalyptic number.

2666240041771 is a deficient number, since it is larger than the sum of its proper divisors (115923480101).

2666240041771 is a wasteful number, since it uses less digits than its factorization.

2666240041771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115923480100.

The product of its (nonzero) digits is 677376, while the sum is 46.

The spelling of 2666240041771 in words is "two trillion, six hundred sixty-six billion, two hundred forty million, forty-one thousand, seven hundred seventy-one".