544542554166 has 64 divisors (see below), whose sum is σ = 1213752254400. Its totient is φ = 161714198016.

The previous prime is 544542554161. The next prime is 544542554207. The reversal of 544542554166 is 661455245445.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (544542554161) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6283780 + ... + 6369848.

It is an arithmetic number, because the mean of its divisors is an integer number (18964878975).

Almost surely, 2^544542554166 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 544542554166, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (606876127200).

544542554166 is an abundant number, since it is smaller than the sum of its proper divisors (669209700234).

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

544542554166 is a wasteful number, since it uses less digits than its factorization.

544542554166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88913.

The product of its digits is 11520000, while the sum is 51.

The spelling of 544542554166 in words is "five hundred forty-four billion, five hundred forty-two million, five hundred fifty-four thousand, one hundred sixty-six".