6657200628 has 24 divisors (see below), whose sum is σ = 16728350688. Its totient is φ = 2048369376.

The previous prime is 6657200621. The next prime is 6657200689. The reversal of 6657200628 is 8260027566.

It is a self number, because there is not a number n which added to its sum of digits gives 6657200628.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6657200621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21337026 + ... + 21337337.

It is an arithmetic number, because the mean of its divisors is an integer number (697014612).

Almost surely, 2^6657200628 is an apocalyptic number.

It is an amenable number.

6657200628 is an abundant number, since it is smaller than the sum of its proper divisors (10071150060).

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

6657200628 is a wasteful number, since it uses less digits than its factorization.

6657200628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42674383 (or 42674381 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 42.

The square root of 6657200628 is about 81591.6700895379. The cubic root of 6657200628 is about 1881.1808474737.

The spelling of 6657200628 in words is "six billion, six hundred fifty-seven million, two hundred thousand, six hundred twenty-eight".