543656656345 has 16 divisors (see below), whose sum is σ = 734653923840. Its totient is φ = 382632249600.

The previous prime is 543656656339. The next prime is 543656656349.

543656656345 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 543656656345 - 2¹³ = 543656648153 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 543656656345.

It is not an unprimeable number, because it can be changed into a prime (543656656349) 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, 159428400 + ... + 159431809.

It is an arithmetic number, because the mean of its divisors is an integer number (45915870240).

Almost surely, 2^543656656345 is an apocalyptic number.

543656656345 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

543656656345 is a deficient number, since it is larger than the sum of its proper divisors (190997267495).

543656656345 is a wasteful number, since it uses less digits than its factorization.

543656656345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318860256.

The product of its digits is 116640000, while the sum is 58.

The spelling of 543656656345 in words is "five hundred forty-three billion, six hundred fifty-six million, six hundred fifty-six thousand, three hundred forty-five".