866225506145012 has 48 divisors (see below), whose sum is σ = 1704879999712512. Its totient is φ = 382099708446720.

The previous prime is 866225506144937. The next prime is 866225506145023. The reversal of 866225506145012 is 210541605522668.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 296107664 + ... + 299018727.

It is an arithmetic number, because the mean of its divisors is an integer number (35518333327344).

Almost surely, 2^{866225506145012} is an apocalyptic number.

It is an amenable number.

866225506145012 is a deficient number, since it is larger than the sum of its proper divisors (838654493567500).

866225506145012 is a wasteful number, since it uses less digits than its factorization.

866225506145012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595127648 (or 595127646 counting only the distinct ones).

The product of its (nonzero) digits is 6912000, while the sum is 53.

The spelling of 866225506145012 in words is "eight hundred sixty-six trillion, two hundred twenty-five billion, five hundred six million, one hundred forty-five thousand, twelve".