2668045608901 has 4 divisors (see below), whose sum is σ = 2668066542400. Its totient is φ = 2668024675404.

The previous prime is 2668045608887. The next prime is 2668045608953. The reversal of 2668045608901 is 1098065408662.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2668045608901 - 2¹³ = 2668045600709 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 (2668045608101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10274391 + ... + 10530868.

It is an arithmetic number, because the mean of its divisors is an integer number (667016635600).

Almost surely, 2^{2668045608901} is an apocalyptic number.

It is an amenable number.

2668045608901 is a deficient number, since it is larger than the sum of its proper divisors (20933499).

2668045608901 is a wasteful number, since it uses less digits than its factorization.

2668045608901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20933498.

The product of its (nonzero) digits is 4976640, while the sum is 55.

The spelling of 2668045608901 in words is "two trillion, six hundred sixty-eight billion, forty-five million, six hundred eight thousand, nine hundred one".