145500505442005 has 24 divisors (see below), whose sum is σ = 210110511739320. Its totient is φ = 96331369115520.

The previous prime is 145500505441919. The next prime is 145500505442041. The reversal of 145500505442005 is 500244505005541.

It can be written as a sum of positive squares in 4 ways, for example, as 24197023388209 + 121303482053796 = 4919047^2 + 11013786^2 .

It is not a de Polignac number, because 145500505442005 - 2²⁹ = 145499968571093 is a prime.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 10239296586 + ... + 10239310795.

It is an arithmetic number, because the mean of its divisors is an integer number (8754604655805).

Almost surely, 2^{145500505442005} is an apocalyptic number.

It is an amenable number.

145500505442005 is a deficient number, since it is larger than the sum of its proper divisors (64610006297315).

145500505442005 is a wasteful number, since it uses less digits than its factorization.

145500505442005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20478607429 (or 20478607422 counting only the distinct ones).

The product of its (nonzero) digits is 400000, while the sum is 40.

The spelling of 145500505442005 in words is "one hundred forty-five trillion, five hundred billion, five hundred five million, four hundred forty-two thousand, five".