21162641030206 has 32 divisors (see below), whose sum is σ = 34301161587168. Its totient is φ = 9734424860160.

The previous prime is 21162641030159. The next prime is 21162641030213. The reversal of 21162641030206 is 60203014626112.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45806821 + ... + 46266511.

It is an arithmetic number, because the mean of its divisors is an integer number (1071911299599).

Almost surely, 2^{21162641030206} is an apocalyptic number.

21162641030206 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

21162641030206 is a deficient number, since it is larger than the sum of its proper divisors (13138520556962).

21162641030206 is a wasteful number, since it uses less digits than its factorization.

21162641030206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465676.

The product of its (nonzero) digits is 20736, while the sum is 34.

Adding to 21162641030206 its reverse (60203014626112), we get a palindrome (81365655656318).

The spelling of 21162641030206 in words is "twenty-one trillion, one hundred sixty-two billion, six hundred forty-one million, thirty thousand, two hundred six".