549474164736 has 672 divisors, whose sum is σ = 1807299164160. Its totient is φ = 147809894400.

The previous prime is 549474164717. The next prime is 549474164741. The reversal of 549474164736 is 637461474945.

It is a tau number, because it is divible by the number of its divisors (672).

It is a self number, because there is not a number n which added to its sum of digits gives 549474164736.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1530568525 + ... + 1530568883.

It is an arithmetic number, because the mean of its divisors is an integer number (2689433280).

Almost surely, 2^549474164736 is an apocalyptic number.

549474164736 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 549474164736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (903649582080).

549474164736 is an abundant number, since it is smaller than the sum of its proper divisors (1257824999424).

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

549474164736 is a wasteful number, since it uses less digits than its factorization.

549474164736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474 (or 443 counting only the distinct ones).

The product of its digits is 60963840, while the sum is 60.

The spelling of 549474164736 in words is "five hundred forty-nine billion, four hundred seventy-four million, one hundred sixty-four thousand, seven hundred thirty-six".