6530651604 has 72 divisors (see below), whose sum is σ = 16967000960. Its totient is φ = 2117187072.

The previous prime is 6530651591. The next prime is 6530651623. The reversal of 6530651604 is 4061560356.

6530651604 is a `hidden beast` number, since 6 + 530 + 65 + 1 + 60 + 4 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 173412 + ... + 207684.

Almost surely, 2^6530651604 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 6530651604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8483500480).

6530651604 is an abundant number, since it is smaller than the sum of its proper divisors (10436349356).

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

6530651604 is a wasteful number, since it uses less digits than its factorization.

6530651604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34429 (or 34424 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 6530651604 is about 80812.4470858295. The cubic root of 6530651604 is about 1869.1845037701.

The spelling of 6530651604 in words is "six billion, five hundred thirty million, six hundred fifty-one thousand, six hundred four".