6771000656 has 40 divisors (see below), whose sum is σ = 15476580864. Its totient is φ = 2808247680.

The previous prime is 6771000653. The next prime is 6771000661. The reversal of 6771000656 is 6560001776.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6771000653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 971615 + ... + 978558.

Almost surely, 2^6771000656 is an apocalyptic number.

It is an amenable number.

6771000656 is an abundant number, since it is smaller than the sum of its proper divisors (8705580208).

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

6771000656 is a wasteful number, since it uses less digits than its factorization.

6771000656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1950219 (or 1950213 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 6771000656 is about 82286.0902947758. The cubic root of 6771000656 is about 1891.8394841676.

The spelling of 6771000656 in words is "six billion, seven hundred seventy-one million, six hundred fifty-six", and thus it is an aban number.