2005501044145 has 4 divisors (see below), whose sum is σ = 2406601252980. Its totient is φ = 1604400835312.

The previous prime is 2005501044091. The next prime is 2005501044167. The reversal of 2005501044145 is 5414401055002.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 406467452304 + 1599033591841 = 637548^2 + 1264529^2 .

It is a cyclic number.

It is not a de Polignac number, because 2005501044145 - 2¹³ = 2005501035953 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200550104410 + ... + 200550104419.

It is an arithmetic number, because the mean of its divisors is an integer number (601650313245).

Almost surely, 2^{2005501044145} is an apocalyptic number.

It is an amenable number.

2005501044145 is a deficient number, since it is larger than the sum of its proper divisors (401100208835).

2005501044145 is an equidigital number, since it uses as much as digits as its factorization.

2005501044145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401100208834.

The product of its (nonzero) digits is 16000, while the sum is 31.

Adding to 2005501044145 its reverse (5414401055002), we get a palindrome (7419902099147).

The spelling of 2005501044145 in words is "two trillion, five billion, five hundred one million, forty-four thousand, one hundred forty-five".