2666003137872 has 40 divisors (see below), whose sum is σ = 6955364634720. Its totient is φ = 879869020800.

The previous prime is 2666003137871. The next prime is 2666003137901. The reversal of 2666003137872 is 2787313006662.

It is a super-2 number, since 2×2666003137872² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2666003137871) 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 7 ways as a sum of consecutive naturals, for example, 274954222 + ... + 274963917.

It is an arithmetic number, because the mean of its divisors is an integer number (173884115868).

Almost surely, 2^{2666003137872} is an apocalyptic number.

It is an amenable number.

2666003137872 is an abundant number, since it is smaller than the sum of its proper divisors (4289361496848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2666003137872 is a wasteful number, since it uses less digits than its factorization.

2666003137872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549918251 (or 549918245 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 51.

The spelling of 2666003137872 in words is "two trillion, six hundred sixty-six billion, three million, one hundred thirty-seven thousand, eight hundred seventy-two".