44145663012066 has 128 divisors (see below), whose sum is σ = 112783193081856. Its totient is φ = 11185252807680.

The previous prime is 44145663012043. The next prime is 44145663012067. The reversal of 44145663012066 is 66021036654144.

It is not an unprimeable number, because it can be changed into a prime (44145663012067) 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, 13919050 + ... + 16793786.

It is an arithmetic number, because the mean of its divisors is an integer number (881118695952).

Almost surely, 2^{44145663012066} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 44145663012066, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56391596540928).

44145663012066 is an abundant number, since it is smaller than the sum of its proper divisors (68637530069790).

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

44145663012066 is a wasteful number, since it uses less digits than its factorization.

44145663012066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2875576.

The product of its (nonzero) digits is 2488320, while the sum is 48.

The spelling of 44145663012066 in words is "forty-four trillion, one hundred forty-five billion, six hundred sixty-three million, twelve thousand, sixty-six".