2660289194880 has 1152 divisors, whose sum is σ = 9990923304960. Its totient is φ = 676549324800.

The previous prime is 2660289194867. The next prime is 2660289194881. The reversal of 2660289194880 is 884919820662.

2660289194880 is a `hidden beast` number, since 2 + 6 + 60 + 2 + 8 + 91 + 9 + 488 + 0 = 666.

2660289194880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (1152).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2660289194881) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 13928215585 + ... + 13928215775.

It is an arithmetic number, because the mean of its divisors is an integer number (8672676480).

Almost surely, 2^{2660289194880} is an apocalyptic number.

2660289194880 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 2660289194880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4995461652480).

2660289194880 is an abundant number, since it is smaller than the sum of its proper divisors (7330634110080).

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

2660289194880 is an equidigital number, since it uses as much as digits as its factorization.

2660289194880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372 (or 339 counting only the distinct ones).

The product of its (nonzero) digits is 23887872, while the sum is 63.

The spelling of 2660289194880 in words is "two trillion, six hundred sixty billion, two hundred eighty-nine million, one hundred ninety-four thousand, eight hundred eighty".