2006128045 has 8 divisors (see below), whose sum is σ = 2446818840. Its totient is φ = 1578592320.

The previous prime is 2006128037. The next prime is 2006128051. The reversal of 2006128045 is 5408216002.

It can be written as a sum of positive squares in 4 ways, for example, as 99321156 + 1906806889 = 9966^2 + 43667^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2006128045 - 2³ = 2006128037 is a prime.

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, 3288430 + ... + 3289039.

It is an arithmetic number, because the mean of its divisors is an integer number (305852355).

Almost surely, 2^2006128045 is an apocalyptic number.

It is an amenable number.

2006128045 is a deficient number, since it is larger than the sum of its proper divisors (440690795).

2006128045 is an equidigital number, since it uses as much as digits as its factorization.

2006128045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6577535.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 2006128045 is about 44789.8207743679. The cubic root of 2006128045 is about 1261.2065466722.

The spelling of 2006128045 in words is "two billion, six million, one hundred twenty-eight thousand, forty-five".