6477126656 has 352 divisors, whose sum is σ = 17827568640. Its totient is φ = 2270822400.

The previous prime is 6477126647. The next prime is 6477126673. The reversal of 6477126656 is 6566217746.

It is a tau number, because it is divible by the number of its divisors (352).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72776660 + ... + 72776748.

Almost surely, 2^6477126656 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 6477126656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8913784320).

6477126656 is an abundant number, since it is smaller than the sum of its proper divisors (11350441984).

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

6477126656 is a wasteful number, since it uses less digits than its factorization.

6477126656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211 (or 193 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 50.

The square root of 6477126656 is about 80480.5980097067. The cubic root of 6477126656 is about 1864.0639027132.

The spelling of 6477126656 in words is "six billion, four hundred seventy-seven million, one hundred twenty-six thousand, six hundred fifty-six".