6657555000 has 80 divisors (see below), whose sum is σ = 20798248680. Its totient is φ = 1775344000.

The previous prime is 6657554993. The next prime is 6657555001. The reversal of 6657555000 is 5557566.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 6657555000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6657555001) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 206919 + ... + 236918.

Almost surely, 2^6657555000 is an apocalyptic number.

6657555000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6657555000 is an abundant number, since it is smaller than the sum of its proper divisors (14140693680).

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

6657555000 is a wasteful number, since it uses less digits than its factorization.

6657555000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443866 (or 443847 counting only the distinct ones).

The product of its (nonzero) digits is 157500, while the sum is 39.

The square root of 6657555000 is about 81593.8416793817. The cubic root of 6657555000 is about 1881.2142261679.

The spelling of 6657555000 in words is "six billion, six hundred fifty-seven million, five hundred fifty-five thousand".