544380066 has 48 divisors (see below), whose sum is σ = 1210023360. Its totient is φ = 176810400.

The previous prime is 544380037. The next prime is 544380071. The reversal of 544380066 is 660083445.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 544380066.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 142165 + ... + 145943.

It is an arithmetic number, because the mean of its divisors is an integer number (25208820).

Almost surely, 2^544380066 is an apocalyptic number.

544380066 is an abundant number, since it is smaller than the sum of its proper divisors (665643294).

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

544380066 is a wasteful number, since it uses less digits than its factorization.

544380066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3991 (or 3988 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 544380066 is about 23331.9537544544. The cubic root of 544380066 is about 816.5210862163.

The spelling of 544380066 in words is "five hundred forty-four million, three hundred eighty thousand, sixty-six".