2006455765 has 8 divisors (see below), whose sum is σ = 2534470560. Its totient is φ = 1520682192.

The previous prime is 2006455757. The next prime is 2006455777. The reversal of 2006455765 is 5675546002.

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

It is a cyclic number.

It is not a de Polignac number, because 2006455765 - 2³ = 2006455757 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 10560199 + ... + 10560388.

It is an arithmetic number, because the mean of its divisors is an integer number (316808820).

Almost surely, 2^2006455765 is an apocalyptic number.

It is an amenable number.

2006455765 is a deficient number, since it is larger than the sum of its proper divisors (528014795).

2006455765 is a wasteful number, since it uses less digits than its factorization.

2006455765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21120611.

The product of its (nonzero) digits is 252000, while the sum is 40.

The square root of 2006455765 is about 44793.4790455039. The cubic root of 2006455765 is about 1261.2752196075.

The spelling of 2006455765 in words is "two billion, six million, four hundred fifty-five thousand, seven hundred sixty-five".