2666337730560 has 1360 divisors, whose sum is σ = 11108311289856. Its totient is φ = 599298932736.

The previous prime is 2666337730547. The next prime is 2666337730579. The reversal of 2666337730560 is 650377336662.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 2666337730497 and 2666337730506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 20994785217 + ... + 20994785343.

Almost surely, 2^{2666337730560} is an apocalyptic number.

2666337730560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2666337730560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5554155644928).

2666337730560 is an abundant number, since it is smaller than the sum of its proper divisors (8441973559296).

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

2666337730560 is an equidigital number, since it uses as much as digits as its factorization.

2666337730560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296 (or 257 counting only the distinct ones).

The product of its (nonzero) digits is 17146080, while the sum is 54.

The spelling of 2666337730560 in words is "two trillion, six hundred sixty-six billion, three hundred thirty-seven million, seven hundred thirty thousand, five hundred sixty".