543164538721 has 16 divisors (see below), whose sum is σ = 623551815040. Its totient is φ = 463475882880.

The previous prime is 543164538701. The next prime is 543164538731. The reversal of 543164538721 is 127835461345.

It is a cyclic number.

It is not a de Polignac number, because 543164538721 - 2²⁷ = 543030320993 is a prime.

It is a super-3 number, since 3×543164538721³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (543164538701) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15709765 + ... + 15744301.

It is an arithmetic number, because the mean of its divisors is an integer number (38971988440).

Almost surely, 2^543164538721 is an apocalyptic number.

It is an amenable number.

543164538721 is a deficient number, since it is larger than the sum of its proper divisors (80387276319).

543164538721 is a wasteful number, since it uses less digits than its factorization.

543164538721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44584.

The product of its digits is 2419200, while the sum is 49.

The spelling of 543164538721 in words is "five hundred forty-three billion, one hundred sixty-four million, five hundred thirty-eight thousand, seven hundred twenty-one".