2666126139608 has 16 divisors (see below), whose sum is σ = 5024107050000. Its totient is φ = 1326364259616.

The previous prime is 2666126139601. The next prime is 2666126139617. The reversal of 2666126139608 is 8069316216662.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2666126139601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 837349583 + ... + 837352766.

It is an arithmetic number, because the mean of its divisors is an integer number (314006690625).

Almost surely, 2^{2666126139608} is an apocalyptic number.

It is an amenable number.

2666126139608 is a deficient number, since it is larger than the sum of its proper divisors (2357980910392).

2666126139608 is a wasteful number, since it uses less digits than its factorization.

2666126139608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1674702554 (or 1674702550 counting only the distinct ones).

The product of its (nonzero) digits is 6718464, while the sum is 56.

The spelling of 2666126139608 in words is "two trillion, six hundred sixty-six billion, one hundred twenty-six million, one hundred thirty-nine thousand, six hundred eight".