866511758461152 has 96 divisors (see below), whose sum is σ = 2278242913605120. Its totient is φ = 288374027904000.

The previous prime is 866511758461127. The next prime is 866511758461207. The reversal of 866511758461152 is 251164857115668.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 263172499 + ... + 266444717.

It is an arithmetic number, because the mean of its divisors is an integer number (23731697016720).

Almost surely, 2^{866511758461152} is an apocalyptic number.

It is an amenable number.

866511758461152 is an abundant number, since it is smaller than the sum of its proper divisors (1411731155143968).

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

866511758461152 is a wasteful number, since it uses less digits than its factorization.

866511758461152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3276656 (or 3276648 counting only the distinct ones).

The product of its digits is 96768000, while the sum is 66.

The spelling of 866511758461152 in words is "eight hundred sixty-six trillion, five hundred eleven billion, seven hundred fifty-eight million, four hundred sixty-one thousand, one hundred fifty-two".