2665066880000 has 660 divisors, whose sum is σ = 8201366910000. Its totient is φ = 859815936000.

The previous prime is 2665066879987. The next prime is 2665066880009. The reversal of 2665066880000 is 886605662.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2665066880009) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 533117501 + ... + 533122499.

It is an arithmetic number, because the mean of its divisors is an integer number (12426313500).

Almost surely, 2^{2665066880000} is an apocalyptic number.

2665066880000 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 2665066880000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4100683455000).

2665066880000 is an abundant number, since it is smaller than the sum of its proper divisors (5536300030000).

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

2665066880000 is an equidigital number, since it uses as much as digits as its factorization.

2665066880000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5070 (or 5030 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 47.

The spelling of 2665066880000 in words is "two trillion, six hundred sixty-five billion, sixty-six million, eight hundred eighty thousand".