866788528474066 has 48 divisors (see below), whose sum is σ = 1532846053522368. Its totient is φ = 363869247156800.

The previous prime is 866788528474051. The next prime is 866788528474093. The reversal of 866788528474066 is 660474825887668.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1018017265 + ... + 1018868356.

It is an arithmetic number, because the mean of its divisors is an integer number (31934292781716).

Almost surely, 2^{866788528474066} is an apocalyptic number.

866788528474066 is a deficient number, since it is larger than the sum of its proper divisors (666057525048302).

866788528474066 is a wasteful number, since it uses less digits than its factorization.

866788528474066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2036885715 (or 2036885686 counting only the distinct ones).

The product of its (nonzero) digits is 41617981440, while the sum is 85.

The spelling of 866788528474066 in words is "eight hundred sixty-six trillion, seven hundred eighty-eight billion, five hundred twenty-eight million, four hundred seventy-four thousand, sixty-six".