2666528322240 has 112 divisors (see below), whose sum is σ = 8469358606080. Its totient is φ = 710811233280.

The previous prime is 2666528322193. The next prime is 2666528322251. The reversal of 2666528322240 is 422238256662.

It is a super-2 number, since 2×2666528322240² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 2666528322240.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2090271 + ... + 3114849.

Almost surely, 2^{2666528322240} is an apocalyptic number.

2666528322240 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 2666528322240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4234679303040).

2666528322240 is an abundant number, since it is smaller than the sum of its proper divisors (5802830283840).

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

2666528322240 is a wasteful number, since it uses less digits than its factorization.

2666528322240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1027310 (or 1027300 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 48.

The spelling of 2666528322240 in words is "two trillion, six hundred sixty-six billion, five hundred twenty-eight million, three hundred twenty-two thousand, two hundred forty".