43221432352255 has 16 divisors (see below), whose sum is σ = 52972323784704. Its totient is φ = 33839494769440.

The previous prime is 43221432352177. The next prime is 43221432352261. The reversal of 43221432352255 is 55225323412234.

It is not a de Polignac number, because 43221432352255 - 2⁷ = 43221432352127 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 1287637 + ... + 9386206.

It is an arithmetic number, because the mean of its divisors is an integer number (3310770236544).

Almost surely, 2^{43221432352255} is an apocalyptic number.

43221432352255 is a deficient number, since it is larger than the sum of its proper divisors (9750891432449).

43221432352255 is a wasteful number, since it uses less digits than its factorization.

43221432352255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10691126.

The product of its digits is 1728000, while the sum is 43.

Adding to 43221432352255 its reverse (55225323412234), we get a palindrome (98446755764489).

The spelling of 43221432352255 in words is "forty-three trillion, two hundred twenty-one billion, four hundred thirty-two million, three hundred fifty-two thousand, two hundred fifty-five".