544540565406 has 8 divisors (see below), whose sum is σ = 1089081130824. Its totient is φ = 181513521800.

The previous prime is 544540565399. The next prime is 544540565407. The reversal of 544540565406 is 604565045445.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

544540565406 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (544540565407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45378380445 + ... + 45378380456.

It is an arithmetic number, because the mean of its divisors is an integer number (136135141353).

Almost surely, 2^544540565406 is an apocalyptic number.

544540565406 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

544540565406 is a wasteful number, since it uses less digits than its factorization.

544540565406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90756760906.

The product of its (nonzero) digits is 5760000, while the sum is 48.

The spelling of 544540565406 in words is "five hundred forty-four billion, five hundred forty million, five hundred sixty-five thousand, four hundred six".