6404525016 has 64 divisors (see below), whose sum is σ = 17057174400. Its totient is φ = 1998102528.

The previous prime is 6404525009. The next prime is 6404525047. The reversal of 6404525016 is 6105254046.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46761 + ... + 122456.

It is an arithmetic number, because the mean of its divisors is an integer number (266518350).

Almost surely, 2^6404525016 is an apocalyptic number.

It is an amenable number.

6404525016 is an abundant number, since it is smaller than the sum of its proper divisors (10652649384).

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

6404525016 is a wasteful number, since it uses less digits than its factorization.

6404525016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169328 (or 169324 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 6404525016 is about 80028.2763527992. The cubic root of 6404525016 is about 1857.0729983550.

The spelling of 6404525016 in words is "six billion, four hundred four million, five hundred twenty-five thousand, sixteen".