2005660126 has 8 divisors (see below), whose sum is σ = 3112231320. Its totient is φ = 968249688.

The previous prime is 2005660117. The next prime is 2005660127. The reversal of 2005660126 is 6210665002.

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

It is a junction number, because it is equal to n+sod(n) for n = 2005660094 and 2005660103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2005660127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17290116 + ... + 17290231.

It is an arithmetic number, because the mean of its divisors is an integer number (389028915).

Almost surely, 2^2005660126 is an apocalyptic number.

2005660126 is a deficient number, since it is larger than the sum of its proper divisors (1106571194).

2005660126 is a wasteful number, since it uses less digits than its factorization.

2005660126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34580378.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 2005660126 is about 44784.5969726200. The cubic root of 2005660126 is about 1261.1084824108.

The spelling of 2005660126 in words is "two billion, five million, six hundred sixty thousand, one hundred twenty-six".