2666347760 has 40 divisors (see below), whose sum is σ = 6226372320. Its totient is φ = 1061874432.

The previous prime is 2666347757. The next prime is 2666347769. The reversal of 2666347760 is 677436662.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2666347769) 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, 54452 + ... + 91091.

It is an arithmetic number, because the mean of its divisors is an integer number (155659308).

Almost surely, 2^2666347760 is an apocalyptic number.

2666347760 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2666347760 is an abundant number, since it is smaller than the sum of its proper divisors (3560024560).

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

2666347760 is a wasteful number, since it uses less digits than its factorization.

2666347760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145785 (or 145779 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 47.

The square root of 2666347760 is about 51636.6900565867. The cubic root of 2666347760 is about 1386.6672671143.

The spelling of 2666347760 in words is "two billion, six hundred sixty-six million, three hundred forty-seven thousand, seven hundred sixty".