543122221345 has 16 divisors (see below), whose sum is σ = 711087306048. Its totient is φ = 394947455040.

The previous prime is 543122221339. The next prime is 543122221351.

543122221345 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (543122221339) and next prime (543122221351).

It is not a de Polignac number, because 543122221345 - 2⁷ = 543122221217 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 543122221345.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 194934 + ... + 1060303.

It is an arithmetic number, because the mean of its divisors is an integer number (44442956628).

Almost surely, 2^543122221345 is an apocalyptic number.

543122221345 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

543122221345 is a deficient number, since it is larger than the sum of its proper divisors (167965084703).

543122221345 is a wasteful number, since it uses less digits than its factorization.

543122221345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1263120.

The product of its digits is 57600, while the sum is 34.

It can be divided in two parts, 543122 and 221345, that added together give a palindrome (764467).

The spelling of 543122221345 in words is "five hundred forty-three billion, one hundred twenty-two million, two hundred twenty-one thousand, three hundred forty-five".