2666099030280 has 768 divisors, whose sum is σ = 9779387904000. Its totient is φ = 568798433280.

The previous prime is 2666099030249. The next prime is 2666099030299. The reversal of 2666099030280 is 820309906662.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 6073118301 + ... + 6073118739.

It is an arithmetic number, because the mean of its divisors is an integer number (12733578000).

Almost surely, 2^{2666099030280} is an apocalyptic number.

2666099030280 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 2666099030280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4889693952000).

2666099030280 is an abundant number, since it is smaller than the sum of its proper divisors (7113288873720).

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

2666099030280 is a wasteful number, since it uses less digits than its factorization.

2666099030280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678 (or 613 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 51.

The spelling of 2666099030280 in words is "two trillion, six hundred sixty-six billion, ninety-nine million, thirty thousand, two hundred eighty".