865055841104 has 240 divisors, whose sum is σ = 2202133340160. Its totient is φ = 321214832640.

The previous prime is 865055841079. The next prime is 865055841109. The reversal of 865055841104 is 401148550568.

It is a super-3 number, since 3×865055841104³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (865055841109) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 125167409 + ... + 125174319.

It is an arithmetic number, because the mean of its divisors is an integer number (9175555584).

Almost surely, 2^865055841104 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 865055841104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1101066670080).

865055841104 is an abundant number, since it is smaller than the sum of its proper divisors (1337077499056).

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

865055841104 is a wasteful number, since it uses less digits than its factorization.

865055841104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7358 (or 7339 counting only the distinct ones).

The product of its (nonzero) digits is 768000, while the sum is 47.

The spelling of 865055841104 in words is "eight hundred sixty-five billion, fifty-five million, eight hundred forty-one thousand, one hundred four".