6640411652 has 24 divisors (see below), whose sum is σ = 13283760000. Its totient is φ = 2845261440.

The previous prime is 6640411601. The next prime is 6640411681. The reversal of 6640411652 is 2561140466.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116252 + ... + 163692.

It is an arithmetic number, because the mean of its divisors is an integer number (553490000).

Almost surely, 2^6640411652 is an apocalyptic number.

It is an amenable number.

6640411652 is an abundant number, since it is smaller than the sum of its proper divisors (6643348348).

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

6640411652 is a wasteful number, since it uses less digits than its factorization.

6640411652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52451 (or 52449 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 6640411652 is about 81488.7210109473. The cubic root of 6640411652 is about 1879.5981157710.

The spelling of 6640411652 in words is "six billion, six hundred forty million, four hundred eleven thousand, six hundred fifty-two".