543665530920 has 64 divisors (see below), whose sum is σ = 1668926761920. Its totient is φ = 141605904384.

The previous prime is 543665530861. The next prime is 543665530927. The reversal of 543665530920 is 29035566345.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 543665530920.

It is not an unprimeable number, because it can be changed into a prime (543665530927) 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, 52675609 + ... + 52685928.

It is an arithmetic number, because the mean of its divisors is an integer number (26076980655).

Almost surely, 2^543665530920 is an apocalyptic number.

It is an amenable number.

543665530920 is an abundant number, since it is smaller than the sum of its proper divisors (1125261231000).

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

543665530920 is a wasteful number, since it uses less digits than its factorization.

543665530920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105361594 (or 105361590 counting only the distinct ones).

The product of its (nonzero) digits is 2916000, while the sum is 48.

The spelling of 543665530920 in words is "five hundred forty-three billion, six hundred sixty-five million, five hundred thirty thousand, nine hundred twenty".