6658477056 has 396 divisors, whose sum is σ = 24180244816. Its totient is φ = 1727447040.

The previous prime is 6658477027. The next prime is 6658477099. The reversal of 6658477056 is 6507748566.

6658477056 is a `hidden beast` number, since 6 + 6 + 584 + 7 + 7 + 0 + 56 = 666.

It is a tau number, because it is divible by the number of its divisors (396).

It is a junction number, because it is equal to n+sod(n) for n = 6658476993 and 6658477011.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 7805526 + ... + 7806378.

Almost surely, 2^6658477056 is an apocalyptic number.

6658477056 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6658477056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12090122408).

6658477056 is an abundant number, since it is smaller than the sum of its proper divisors (17521767760).

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

6658477056 is a wasteful number, since it uses less digits than its factorization.

6658477056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 908 (or 876 counting only the distinct ones).

The product of its (nonzero) digits is 8467200, while the sum is 54.

The square root of 6658477056 is about 81599.4917631231. The cubic root of 6658477056 is about 1881.3010701014.

The spelling of 6658477056 in words is "six billion, six hundred fifty-eight million, four hundred seventy-seven thousand, fifty-six".