2005445335221 has 24 divisors (see below), whose sum is σ = 2900218664096. Its totient is φ = 1335365287200.

The previous prime is 2005445335199. The next prime is 2005445335307. The reversal of 2005445335221 is 1225335445002.

2005445335221 is a `hidden beast` number, since 2 + 0 + 0 + 54 + 4 + 533 + 52 + 21 = 666.

It is not a de Polignac number, because 2005445335221 - 2¹⁰ = 2005445334197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2005445335021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42381051 + ... + 42428343.

Almost surely, 2^{2005445335221} is an apocalyptic number.

It is an amenable number.

2005445335221 is a deficient number, since it is larger than the sum of its proper divisors (894773328875).

2005445335221 is a wasteful number, since it uses less digits than its factorization.

2005445335221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52833 (or 52830 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

The spelling of 2005445335221 in words is "two trillion, five billion, four hundred forty-five million, three hundred thirty-five thousand, two hundred twenty-one".