2666888333560 has 256 divisors, whose sum is σ = 6766312734720. Its totient is φ = 937645632000.

The previous prime is 2666888333539. The next prime is 2666888333591. The reversal of 2666888333560 is 653338886662.

It is a happy number.

It is a super-2 number, since 2×2666888333560² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2666888333492 and 2666888333501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 835751565 + ... + 835754755.

It is an arithmetic number, because the mean of its divisors is an integer number (26430909120).

Almost surely, 2^{2666888333560} is an apocalyptic number.

2666888333560 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 2666888333560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3383156367360).

2666888333560 is an abundant number, since it is smaller than the sum of its proper divisors (4099424401160).

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

2666888333560 is a wasteful number, since it uses less digits than its factorization.

2666888333560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3690 (or 3686 counting only the distinct ones).

The product of its (nonzero) digits is 179159040, while the sum is 64.

The spelling of 2666888333560 in words is "two trillion, six hundred sixty-six billion, eight hundred eighty-eight million, three hundred thirty-three thousand, five hundred sixty".