5266559450880 has 2592 divisors, whose sum is σ = 24936440256000. Its totient is φ = 1051950219264.

The previous prime is 5266559450743. The next prime is 5266559450881. The reversal of 5266559450880 is 880549556625.

5266559450880 is a `hidden beast` number, since 5 + 26 + 6 + 559 + 4 + 50 + 8 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (2592).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5266559450881) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 3764516421 + ... + 3764517819.

Almost surely, 2^{5266559450880} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5266559450880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12468220128000).

5266559450880 is an abundant number, since it is smaller than the sum of its proper divisors (19669880805120).

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

5266559450880 is a wasteful number, since it uses less digits than its factorization.

5266559450880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1481 (or 1448 counting only the distinct ones).

The product of its (nonzero) digits is 103680000, while the sum is 63.

The spelling of 5266559450880 in words is "five trillion, two hundred sixty-six billion, five hundred fifty-nine million, four hundred fifty thousand, eight hundred eighty".