6491603232 has 144 divisors (see below), whose sum is σ = 19957916160. Its totient is φ = 1994512896.

The previous prime is 6491603219. The next prime is 6491603263. The reversal of 6491603232 is 2323061946.

6491603232 is a `hidden beast` number, since 6 + 49 + 1 + 603 + 2 + 3 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 186433 + ... + 218495.

It is an arithmetic number, because the mean of its divisors is an integer number (138596640).

Almost surely, 2^6491603232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6491603232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9978958080).

6491603232 is an abundant number, since it is smaller than the sum of its proper divisors (13466312928).

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

6491603232 is a wasteful number, since it uses less digits than its factorization.

6491603232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32135 (or 32124 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The square root of 6491603232 is about 80570.4861099894. The cubic root of 6491603232 is about 1865.4516159601.

The spelling of 6491603232 in words is "six billion, four hundred ninety-one million, six hundred three thousand, two hundred thirty-two".