866546100841104 has 200 divisors, whose sum is σ = 2512847751289920. Its totient is φ = 288294980827392.

The previous prime is 866546100841067. The next prime is 866546100841111. The reversal of 866546100841104 is 401148001645668.

866546100841104 is a `hidden beast` number, since 8 + 6 + 6 + 5 + 4 + 610 + 0 + 8 + 4 + 1 + 10 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1609636327 + ... + 1610174585.

Almost surely, 2^{866546100841104} 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 866546100841104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1256423875644960).

866546100841104 is an abundant number, since it is smaller than the sum of its proper divisors (1646301650448816).

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

866546100841104 is a wasteful number, since it uses less digits than its factorization.

866546100841104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540659 (or 540644 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 54.

The spelling of 866546100841104 in words is "eight hundred sixty-six trillion, five hundred forty-six billion, one hundred million, eight hundred forty-one thousand, one hundred four".