544666666446 has 192 divisors, whose sum is σ = 1466758656000. Its totient is φ = 149214985920.

The previous prime is 544666666409. The next prime is 544666666493. The reversal of 544666666446 is 644666666445.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 8910375 + ... + 8971293.

It is an arithmetic number, because the mean of its divisors is an integer number (7639368000).

Almost surely, 2^544666666446 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 544666666446, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (733379328000).

544666666446 is an abundant number, since it is smaller than the sum of its proper divisors (922091989554).

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

544666666446 is a wasteful number, since it uses less digits than its factorization.

544666666446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61084 (or 61071 counting only the distinct ones).

The product of its digits is 358318080, while the sum is 63.

Subtracting 544666666446 from its reverse (644666666445), we obtain a palindrome (99999999999).

The spelling of 544666666446 in words is "five hundred forty-four billion, six hundred sixty-six million, six hundred sixty-six thousand, four hundred forty-six".