42005433220145 has 8 divisors (see below), whose sum is σ = 50411819734080. Its totient is φ = 33600813329520.

The previous prime is 42005433220111. The next prime is 42005433220207. The reversal of 42005433220145 is 54102233450024.

It is a happy number.

42005433220145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42005433220145 - 2²⁰ = 42005432171569 is a prime.

It is a super-2 number, since 2×42005433220145² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 441603515 + ... + 441698624.

It is an arithmetic number, because the mean of its divisors is an integer number (6301477466760).

Almost surely, 2^{42005433220145} is an apocalyptic number.

It is an amenable number.

42005433220145 is a deficient number, since it is larger than the sum of its proper divisors (8406386513935).

42005433220145 is an equidigital number, since it uses as much as digits as its factorization.

42005433220145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 883311655.

The product of its (nonzero) digits is 115200, while the sum is 35.

Adding to 42005433220145 its reverse (54102233450024), we get a palindrome (96107666670169).

The spelling of 42005433220145 in words is "forty-two trillion, five billion, four hundred thirty-three million, two hundred twenty thousand, one hundred forty-five".