41643244256166 has 128 divisors (see below), whose sum is σ = 106768662174720. Its totient is φ = 11785188960000.

The previous prime is 41643244256161. The next prime is 41643244256231. The reversal of 41643244256166 is 66165244234614.

41643244256166 is a `hidden beast` number, since 4 + 1 + 6 + 4 + 32 + 4 + 42 + 561 + 6 + 6 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41643244256161) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15960450 + ... + 18385386.

It is an arithmetic number, because the mean of its divisors is an integer number (834130173240).

Almost surely, 2^{41643244256166} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 41643244256166, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53384331087360).

41643244256166 is an abundant number, since it is smaller than the sum of its proper divisors (65125417918554).

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

41643244256166 is a wasteful number, since it uses less digits than its factorization.

41643244256166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2425387 (or 2425381 counting only the distinct ones).

The product of its digits is 19906560, while the sum is 54.

The spelling of 41643244256166 in words is "forty-one trillion, six hundred forty-three billion, two hundred forty-four million, two hundred fifty-six thousand, one hundred sixty-six".