544665661140 has 48 divisors (see below), whose sum is σ = 1546543635840. Its totient is φ = 143198482560.

The previous prime is 544665661097. The next prime is 544665661151. The reversal of 544665661140 is 41166566445.

It is a self number, because there is not a number n which added to its sum of digits gives 544665661140.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63923635 + ... + 63932154.

It is an arithmetic number, because the mean of its divisors is an integer number (32219659080).

Almost surely, 2^544665661140 is an apocalyptic number.

It is an amenable number.

544665661140 is an abundant number, since it is smaller than the sum of its proper divisors (1001877974700).

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

544665661140 is a wasteful number, since it uses less digits than its factorization.

544665661140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127855872 (or 127855870 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 48.

The spelling of 544665661140 in words is "five hundred forty-four billion, six hundred sixty-five million, six hundred sixty-one thousand, one hundred forty".