6434597664 has 96 divisors (see below), whose sum is σ = 20473750080. Its totient is φ = 1949875200.

The previous prime is 6434597573. The next prime is 6434597681. The reversal of 6434597664 is 4667954346.

It is a happy number.

6434597664 is a `hidden beast` number, since 6 + 43 + 4 + 597 + 6 + 6 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 6434597664.

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, 329017 + ... + 348024.

It is an arithmetic number, because the mean of its divisors is an integer number (213268230).

Almost surely, 2^6434597664 is an apocalyptic number.

It is an amenable number.

6434597664 is an abundant number, since it is smaller than the sum of its proper divisors (14039152416).

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

6434597664 is a wasteful number, since it uses less digits than its factorization.

6434597664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677071 (or 677057 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 54.

The square root of 6434597664 is about 80215.9439513118. The cubic root of 6434597664 is about 1859.9751089281.

The spelling of 6434597664 in words is "six billion, four hundred thirty-four million, five hundred ninety-seven thousand, six hundred sixty-four".