6557705020 has 48 divisors (see below), whose sum is σ = 13893243840. Its totient is φ = 2599893504.

The previous prime is 6557705009. The next prime is 6557705047. The reversal of 6557705020 is 205077556.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2270017 + ... + 2272903.

It is an arithmetic number, because the mean of its divisors is an integer number (289442580).

Almost surely, 2^6557705020 is an apocalyptic number.

It is an amenable number.

6557705020 is an abundant number, since it is smaller than the sum of its proper divisors (7335538820).

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

6557705020 is a wasteful number, since it uses less digits than its factorization.

6557705020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3862 (or 3860 counting only the distinct ones).

The product of its (nonzero) digits is 73500, while the sum is 37.

The square root of 6557705020 is about 80979.6580629975. The cubic root of 6557705020 is about 1871.7619984850.

The spelling of 6557705020 in words is "six billion, five hundred fifty-seven million, seven hundred five thousand, twenty".