206442242418 has 32 divisors (see below), whose sum is σ = 419986022400. Its totient is φ = 67638304656.

The previous prime is 206442242317. The next prime is 206442242449. The reversal of 206442242418 is 814242244602.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 870828 + ... + 1082231.

It is an arithmetic number, because the mean of its divisors is an integer number (13124563200).

Almost surely, 2^206442242418 is an apocalyptic number.

206442242418 is an abundant number, since it is smaller than the sum of its proper divisors (213543779982).

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

206442242418 is a wasteful number, since it uses less digits than its factorization.

206442242418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1953366.

The product of its (nonzero) digits is 196608, while the sum is 39.

The spelling of 206442242418 in words is "two hundred six billion, four hundred forty-two million, two hundred forty-two thousand, four hundred eighteen".