566803139777280 has 3888 divisors, whose sum is σ = 2454429569679360. Its totient is φ = 122814059397120.

The previous prime is 566803139777261. The next prime is 566803139777309. The reversal of 566803139777280 is 82777931308665.

566803139777280 is a `hidden beast` number, since 5 + 6 + 6 + 80 + 313 + 97 + 7 + 72 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (3888).

It is a super-2 number, since 2×566803139777280² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 566803139777199 and 566803139777208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 431 ways as a sum of consecutive naturals, for example, 4463016848577 + ... + 4463016848703.

Almost surely, 2^{566803139777280} 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 566803139777280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1227214784839680).

566803139777280 is an abundant number, since it is smaller than the sum of its proper divisors (1887626429902080).

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

566803139777280 is an frugal number, since it uses more digits than its factorization.

566803139777280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320 (or 254 counting only the distinct ones).

The product of its (nonzero) digits is 640120320, while the sum is 72.

The spelling of 566803139777280 in words is "five hundred sixty-six trillion, eight hundred three billion, one hundred thirty-nine million, seven hundred seventy-seven thousand, two hundred eighty".