6405016255 has 32 divisors (see below), whose sum is σ = 8483367168. Its totient is φ = 4603622400.

The previous prime is 6405016249. The next prime is 6405016259. The reversal of 6405016255 is 5526105046.

It is not a de Polignac number, because 6405016255 - 2³¹ = 4257532607 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6405016255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6405016259) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3076815 + ... + 3078895.

It is an arithmetic number, because the mean of its divisors is an integer number (265105224).

Almost surely, 2^6405016255 is an apocalyptic number.

6405016255 is a deficient number, since it is larger than the sum of its proper divisors (2078350913).

6405016255 is a wasteful number, since it uses less digits than its factorization.

6405016255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2727.

The product of its (nonzero) digits is 36000, while the sum is 34.

The square root of 6405016255 is about 80031.3454528911. The cubic root of 6405016255 is about 1857.1204774607.

The spelling of 6405016255 in words is "six billion, four hundred five million, sixteen thousand, two hundred fifty-five".