6556077956 has 12 divisors (see below), whose sum is σ = 11490188892. Its totient is φ = 3273166848.

The previous prime is 6556077949. The next prime is 6556077959. The reversal of 6556077956 is 6597706556.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2363515456 + 4192562500 = 48616^2 + 64750^2 .

It is not an unprimeable number, because it can be changed into a prime (6556077959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1215005 + ... + 1220388.

It is an arithmetic number, because the mean of its divisors is an integer number (957515741).

Almost surely, 2^6556077956 is an apocalyptic number.

It is an amenable number.

6556077956 is a deficient number, since it is larger than the sum of its proper divisors (4934110936).

6556077956 is a wasteful number, since it uses less digits than its factorization.

6556077956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2436070 (or 2436068 counting only the distinct ones).

The product of its (nonzero) digits is 11907000, while the sum is 56.

The square root of 6556077956 is about 80969.6113118990. The cubic root of 6556077956 is about 1871.6071816974.

The spelling of 6556077956 in words is "six billion, five hundred fifty-six million, seventy-seven thousand, nine hundred fifty-six".