6556436042 has 32 divisors (see below), whose sum is σ = 10674471360. Its totient is φ = 3002313600.

The previous prime is 6556436041. The next prime is 6556436059. The reversal of 6556436042 is 2406346556.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (6556436041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3639542 + ... + 3641342.

It is an arithmetic number, because the mean of its divisors is an integer number (333577230).

Almost surely, 2^6556436042 is an apocalyptic number.

6556436042 is a deficient number, since it is larger than the sum of its proper divisors (4118035318).

6556436042 is a wasteful number, since it uses less digits than its factorization.

6556436042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2838.

The product of its (nonzero) digits is 518400, while the sum is 41.

The square root of 6556436042 is about 80971.8225187009. The cubic root of 6556436042 is about 1871.6412561412.

The spelling of 6556436042 in words is "six billion, five hundred fifty-six million, four hundred thirty-six thousand, forty-two".