2660525575560 has 384 divisors, whose sum is σ = 9118018990080. Its totient is φ = 697621413888.

The previous prime is 2660525575507. The next prime is 2660525575579. The reversal of 2660525575560 is 655755250662.

2660525575560 is a `hidden beast` number, since 2 + 6 + 6 + 0 + 5 + 2 + 5 + 5 + 75 + 560 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 2660525575497 and 2660525575506.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 139482184 + ... + 139501256.

It is an arithmetic number, because the mean of its divisors is an integer number (23744841120).

Almost surely, 2^{2660525575560} is an apocalyptic number.

2660525575560 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 2660525575560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4559009495040).

2660525575560 is an abundant number, since it is smaller than the sum of its proper divisors (6457493414520).

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

2660525575560 is a wasteful number, since it uses less digits than its factorization.

2660525575560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19339 (or 19323 counting only the distinct ones).

The product of its (nonzero) digits is 18900000, while the sum is 54.

The spelling of 2660525575560 in words is "two trillion, six hundred sixty billion, five hundred twenty-five million, five hundred seventy-five thousand, five hundred sixty".