2005445335220 has 24 divisors (see below), whose sum is σ = 4459166687304. Its totient is φ = 754991184896.

The previous prime is 2005445335199. The next prime is 2005445335307. The reversal of 2005445335220 is 225335445002.

It can be written as a sum of positive squares in 4 ways, for example, as 198023220004 + 1807422115216 = 444998^2 + 1344404^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2949183977 + ... + 2949184656.

It is an arithmetic number, because the mean of its divisors is an integer number (185798611971).

Almost surely, 2^{2005445335220} is an apocalyptic number.

2005445335220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2005445335220 is an abundant number, since it is smaller than the sum of its proper divisors (2453721352084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2005445335220 is a wasteful number, since it uses less digits than its factorization.

2005445335220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5898368659 (or 5898368657 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 35.

The spelling of 2005445335220 in words is "two trillion, five billion, four hundred forty-five million, three hundred thirty-five thousand, two hundred twenty".