2006565100 has 36 divisors (see below), whose sum is σ = 4504399200. Its totient is φ = 774948160.

The previous prime is 2006565083. The next prime is 2006565101. The reversal of 2006565100 is 15656002.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (2006565101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 343060 + ... + 348859.

It is an arithmetic number, because the mean of its divisors is an integer number (125122200).

Almost surely, 2^2006565100 is an apocalyptic number.

2006565100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2006565100 is an abundant number, since it is smaller than the sum of its proper divisors (2497834100).

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

2006565100 is a wasteful number, since it uses less digits than its factorization.

2006565100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691962 (or 691955 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 2006565100 is about 44794.6994632177. The cubic root of 2006565100 is about 1261.2981288295.

The spelling of 2006565100 in words is "two billion, six million, five hundred sixty-five thousand, one hundred".