866155826304088 has 32 divisors (see below), whose sum is σ = 1632275756298720. Its totient is φ = 430887439296000.

The previous prime is 866155826304079. The next prime is 866155826304091. The reversal of 866155826304088 is 880403628551668.

It is a Smith number, since the sum of its digits (70) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 320403873 + ... + 323095888.

It is an arithmetic number, because the mean of its divisors is an integer number (51008617384335).

Almost surely, 2^{866155826304088} is an apocalyptic number.

It is an amenable number.

866155826304088 is a deficient number, since it is larger than the sum of its proper divisors (766119929994632).

866155826304088 is a wasteful number, since it uses less digits than its factorization.

866155826304088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643500619 (or 643500615 counting only the distinct ones).

The product of its (nonzero) digits is 530841600, while the sum is 70.

The spelling of 866155826304088 in words is "eight hundred sixty-six trillion, one hundred fifty-five billion, eight hundred twenty-six million, three hundred four thousand, eighty-eight".