6657655480 has 384 divisors, whose sum is σ = 19436544000. Its totient is φ = 2037934080.

The previous prime is 6657655457. The next prime is 6657655513. The reversal of 6657655480 is 845567566.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 84274081 + ... + 84274159.

It is an arithmetic number, because the mean of its divisors is an integer number (50616000).

Almost surely, 2^6657655480 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6657655480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9718272000).

6657655480 is an abundant number, since it is smaller than the sum of its proper divisors (12778888520).

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

6657655480 is a wasteful number, since it uses less digits than its factorization.

6657655480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227 (or 216 counting only the distinct ones).

The product of its (nonzero) digits is 6048000, while the sum is 52.

The square root of 6657655480 is about 81594.4574098020. The cubic root of 6657655480 is about 1881.2236902756.

The spelling of 6657655480 in words is "six billion, six hundred fifty-seven million, six hundred fifty-five thousand, four hundred eighty".