142442444011505 has 16 divisors (see below), whose sum is σ = 188716736343744. Its totient is φ = 102346378169280.

The previous prime is 142442444011477. The next prime is 142442444011519. The reversal of 142442444011505 is 505110444244241.

It is not a de Polignac number, because 142442444011505 - 2¹⁶ = 142442443945969 is a prime.

It is a Duffinian 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, 15601577474 + ... + 15601586603.

It is an arithmetic number, because the mean of its divisors is an integer number (11794796021484).

Almost surely, 2^{142442444011505} is an apocalyptic number.

It is an amenable number.

142442444011505 is a deficient number, since it is larger than the sum of its proper divisors (46274292332239).

142442444011505 is a wasteful number, since it uses less digits than its factorization.

142442444011505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31203164176.

The product of its (nonzero) digits is 409600, while the sum is 41.

Adding to 142442444011505 its reverse (505110444244241), we get a palindrome (647552888255746).

The spelling of 142442444011505 in words is "one hundred forty-two trillion, four hundred forty-two billion, four hundred forty-four million, eleven thousand, five hundred five".