2066144544 has 96 divisors (see below), whose sum is σ = 6220730880. Its totient is φ = 666489600.

The previous prime is 2066144543. The next prime is 2066144551. The reversal of 2066144544 is 4454416602.

2066144544 is a `hidden beast` number, since 206 + 6 + 1 + 445 + 4 + 4 = 666.

2066144544 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2066144499 and 2066144508.

It is not an unprimeable number, because it can be changed into a prime (2066144543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11787 + ... + 65354.

It is an arithmetic number, because the mean of its divisors is an integer number (64799280).

Almost surely, 2^2066144544 is an apocalyptic number.

2066144544 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2066144544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3110365440).

2066144544 is an abundant number, since it is smaller than the sum of its proper divisors (4154586336).

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

2066144544 is a wasteful number, since it uses less digits than its factorization.

2066144544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77191 (or 77177 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 36.

The square root of 2066144544 is about 45454.8627101656. The cubic root of 2066144544 is about 1273.6601676183.

The spelling of 2066144544 in words is "two billion, sixty-six million, one hundred forty-four thousand, five hundred forty-four".