206162441538 has 16 divisors (see below), whose sum is σ = 412336547040. Its totient is φ = 68718869856.

The previous prime is 206162441533. The next prime is 206162441557. The reversal of 206162441538 is 835144261602.

It is a self number, because there is not a number n which added to its sum of digits gives 206162441538.

It is not an unprimeable number, because it can be changed into a prime (206162441533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247195 + ... + 688062.

It is an arithmetic number, because the mean of its divisors is an integer number (25771034190).

Almost surely, 2^206162441538 is an apocalyptic number.

206162441538 is an abundant number, since it is smaller than the sum of its proper divisors (206174105502).

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

206162441538 is a wasteful number, since it uses less digits than its factorization.

206162441538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972001.

The product of its (nonzero) digits is 276480, while the sum is 42.

The spelling of 206162441538 in words is "two hundred six billion, one hundred sixty-two million, four hundred forty-one thousand, five hundred thirty-eight".