6355555880 has 16 divisors (see below), whose sum is σ = 14300000820. Its totient is φ = 2542222336.

The previous prime is 6355555867. The next prime is 6355555889. The reversal of 6355555880 is 885555536.

It can be written as a sum of positive squares in 2 ways, for example, as 6352408804 + 3147076 = 79702^2 + 1774^2 .

It is not an unprimeable number, because it can be changed into a prime (6355555889) 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, 79444409 + ... + 79444488.

Almost surely, 2^6355555880 is an apocalyptic number.

It is an amenable number.

6355555880 is an abundant number, since it is smaller than the sum of its proper divisors (7944444940).

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

6355555880 is a wasteful number, since it uses less digits than its factorization.

6355555880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158888908 (or 158888904 counting only the distinct ones).

The product of its (nonzero) digits is 3600000, while the sum is 50.

The square root of 6355555880 is about 79721.7403221982. The cubic root of 6355555880 is about 1852.3278104303.

The spelling of 6355555880 in words is "six billion, three hundred fifty-five million, five hundred fifty-five thousand, eight hundred eighty".