6658497672 has 32 divisors (see below), whose sum is σ = 17220254400. Its totient is φ = 2142964544.

The previous prime is 6658497667. The next prime is 6658497683. The reversal of 6658497672 is 2767948566.

It is a super-3 number, since 3×6658497672³ (a number of 30 digits) contains 333 as substring.

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, 4782708 + ... + 4784099.

It is an arithmetic number, because the mean of its divisors is an integer number (538132950).

Almost surely, 2^6658497672 is an apocalyptic number.

It is an amenable number.

6658497672 is an abundant number, since it is smaller than the sum of its proper divisors (10561756728).

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

6658497672 is a wasteful number, since it uses less digits than its factorization.

6658497672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9566845 (or 9566841 counting only the distinct ones).

The product of its digits is 30481920, while the sum is 60.

The square root of 6658497672 is about 81599.6180873416. The cubic root of 6658497672 is about 1881.3030117297.

The spelling of 6658497672 in words is "six billion, six hundred fifty-eight million, four hundred ninety-seven thousand, six hundred seventy-two".