7042855566 has 16 divisors (see below), whose sum is σ = 14156496000. Its totient is φ = 2335821048.

The previous prime is 7042855541. The next prime is 7042855607. The reversal of 7042855566 is 6655582407.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2948076 + ... + 2950463.

It is an arithmetic number, because the mean of its divisors is an integer number (884781000).

Almost surely, 2^7042855566 is an apocalyptic number.

7042855566 is an abundant number, since it is smaller than the sum of its proper divisors (7113640434).

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

7042855566 is a wasteful number, since it uses less digits than its factorization.

7042855566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5898743.

The product of its (nonzero) digits is 2016000, while the sum is 48.

The square root of 7042855566 is about 83921.7228493314. The cubic root of 7042855566 is about 1916.8270406684.

The spelling of 7042855566 in words is "seven billion, forty-two million, eight hundred fifty-five thousand, five hundred sixty-six".