200505681806942 has 16 divisors (see below), whose sum is σ = 316626094458960. Its totient is φ = 94964922847872.

The previous prime is 200505681806909. The next prime is 200505681807029. The reversal of 200505681806942 is 249608186505002.

It is a happy number.

200505681806942 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 317812523 + ... + 318442790.

It is an arithmetic number, because the mean of its divisors is an integer number (19789130903685).

Almost surely, 2^{200505681806942} is an apocalyptic number.

200505681806942 is a deficient number, since it is larger than the sum of its proper divisors (116120412652018).

200505681806942 is a wasteful number, since it uses less digits than its factorization.

200505681806942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636263627.

The product of its (nonzero) digits is 8294400, while the sum is 56.

The spelling of 200505681806942 in words is "two hundred trillion, five hundred five billion, six hundred eighty-one million, eight hundred six thousand, nine hundred forty-two".