866754236045 has 32 divisors (see below), whose sum is σ = 1078373157120. Its totient is φ = 667999664640.

The previous prime is 866754236021. The next prime is 866754236059. The reversal of 866754236045 is 540632457668.

It is a de Polignac number, because none of the positive numbers 2^k-866754236045 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 221617640 + ... + 221621550.

It is an arithmetic number, because the mean of its divisors is an integer number (33699161160).

Almost surely, 2^866754236045 is an apocalyptic number.

It is an amenable number.

866754236045 is a deficient number, since it is larger than the sum of its proper divisors (211618921075).

866754236045 is a wasteful number, since it uses less digits than its factorization.

866754236045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6965.

The product of its (nonzero) digits is 29030400, while the sum is 56.

The spelling of 866754236045 in words is "eight hundred sixty-six billion, seven hundred fifty-four million, two hundred thirty-six thousand, forty-five".