2065555200 has 108 divisors (see below), whose sum is σ = 6816825848. Its totient is φ = 550809600.

The previous prime is 2065555187. The next prime is 2065555211. The reversal of 2065555200 is 25555602.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

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, 34591 + ... + 72990.

Almost surely, 2^2065555200 is an apocalyptic number.

2065555200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2065555200 is an abundant number, since it is smaller than the sum of its proper divisors (4751270648).

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

2065555200 is a wasteful number, since it uses less digits than its factorization.

2065555200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107610 (or 107591 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 30.

The square root of 2065555200 is about 45448.3795090650. The cubic root of 2065555200 is about 1273.5390571244.

It can be divided in two parts, 20655 and 55200, that added together give a triangular number (75855 = T₃₈₉).

The spelling of 2065555200 in words is "two billion, sixty-five million, five hundred fifty-five thousand, two hundred".