866127117075352 has 128 divisors (see below), whose sum is σ = 1866048449126400. Its totient is φ = 372737188598400.

The previous prime is 866127117075313. The next prime is 866127117075373. The reversal of 866127117075352 is 253570711721668.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17928131277 + ... + 17928179587.

It is an arithmetic number, because the mean of its divisors is an integer number (14578503508800).

Almost surely, 2^{866127117075352} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 866127117075352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (933024224563200).

866127117075352 is an abundant number, since it is smaller than the sum of its proper divisors (999921332051048).

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

866127117075352 is a wasteful number, since it uses less digits than its factorization.

866127117075352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54917 (or 54913 counting only the distinct ones).

The product of its (nonzero) digits is 29635200, while the sum is 61.

The spelling of 866127117075352 in words is "eight hundred sixty-six trillion, one hundred twenty-seven billion, one hundred seventeen million, seventy-five thousand, three hundred fifty-two".