566746887743816 has 128 divisors (see below), whose sum is σ = 1211172480000000. Its totient is φ = 246461747984640.

The previous prime is 566746887743801. The next prime is 566746887743821. The reversal of 566746887743816 is 618347788647665.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1924296935 + ... + 1924591433.

It is an arithmetic number, because the mean of its divisors is an integer number (9462285000000).

Almost surely, 2^{566746887743816} 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 566746887743816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (605586240000000).

566746887743816 is an abundant number, since it is smaller than the sum of its proper divisors (644425592256184).

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

566746887743816 is a wasteful number, since it uses less digits than its factorization.

566746887743816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299827 (or 299823 counting only the distinct ones).

The product of its digits is 54623600640, while the sum is 86.

The spelling of 566746887743816 in words is "five hundred sixty-six trillion, seven hundred forty-six billion, eight hundred eighty-seven million, seven hundred forty-three thousand, eight hundred sixteen".