543805164 has 120 divisors (see below), whose sum is σ = 1635780608. Its totient is φ = 154314720.

The previous prime is 543805153. The next prime is 543805177. The reversal of 543805164 is 461508345.

It is a happy number.

543805164 is a `hidden beast` number, since 543 + 8 + 0 + 51 + 64 = 666.

543805164 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 368949 + ... + 370419.

Almost surely, 2^543805164 is an apocalyptic number.

543805164 is a gapful number since it is divisible by the number (54) 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 543805164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (817890304).

543805164 is an abundant number, since it is smaller than the sum of its proper divisors (1091975444).

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

543805164 is a wasteful number, since it uses less digits than its factorization.

543805164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1657 (or 1646 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 543805164 is about 23319.6304430409. The cubic root of 543805164 is about 816.2335512274.

The spelling of 543805164 in words is "five hundred forty-three million, eight hundred five thousand, one hundred sixty-four".