2666260840628 has 48 divisors (see below), whose sum is σ = 5861703310848. Its totient is φ = 1030873116000.

The previous prime is 2666260840577. The next prime is 2666260840669. The reversal of 2666260840628 is 8260480626662.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 33000458 + ... + 33081153.

It is an arithmetic number, because the mean of its divisors is an integer number (122118818976).

Almost surely, 2^{2666260840628} is an apocalyptic number.

2666260840628 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2666260840628 is an abundant number, since it is smaller than the sum of its proper divisors (3195442470220).

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

2666260840628 is a wasteful number, since it uses less digits than its factorization.

2666260840628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66081764 (or 66081762 counting only the distinct ones).

The product of its (nonzero) digits is 15925248, while the sum is 56.

The spelling of 2666260840628 in words is "two trillion, six hundred sixty-six billion, two hundred sixty million, eight hundred forty thousand, six hundred twenty-eight".