6657538892 has 6 divisors (see below), whose sum is σ = 11650693068. Its totient is φ = 3328769444.

The previous prime is 6657538891. The next prime is 6657538897. The reversal of 6657538892 is 2988357566.

It is not an unprimeable number, because it can be changed into a prime (6657538891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 832192358 + ... + 832192365.

It is an arithmetic number, because the mean of its divisors is an integer number (1941782178).

Almost surely, 2^6657538892 is an apocalyptic number.

It is an amenable number.

6657538892 is a deficient number, since it is larger than the sum of its proper divisors (4993154176).

6657538892 is a wasteful number, since it uses less digits than its factorization.

6657538892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1664384727 (or 1664384725 counting only the distinct ones).

The product of its digits is 21772800, while the sum is 59.

The square root of 6657538892 is about 81593.7429708921. The cubic root of 6657538892 is about 1881.2127089631.

The spelling of 6657538892 in words is "six billion, six hundred fifty-seven million, five hundred thirty-eight thousand, eight hundred ninety-two".