43155220255 has 16 divisors (see below), whose sum is σ = 60067653120. Its totient is φ = 29150475552.

The previous prime is 43155220253. The next prime is 43155220261. The reversal of 43155220255 is 55202255134.

It is a cyclic number.

It is not a de Polignac number, because 43155220255 - 2¹ = 43155220253 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43155220255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43155220253) 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, 9199195 + ... + 9203884.

It is an arithmetic number, because the mean of its divisors is an integer number (3754228320).

Almost surely, 2^43155220255 is an apocalyptic number.

43155220255 is a deficient number, since it is larger than the sum of its proper divisors (16912432865).

43155220255 is a wasteful number, since it uses less digits than its factorization.

43155220255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18403158.

The product of its (nonzero) digits is 60000, while the sum is 34.

Adding to 43155220255 its reverse (55202255134), we get a palindrome (98357475389).

The spelling of 43155220255 in words is "forty-three billion, one hundred fifty-five million, two hundred twenty thousand, two hundred fifty-five".