21115334625162 has 16 divisors (see below), whose sum is σ = 42922975304352. Its totient is φ = 6923060532720.

The previous prime is 21115334625113. The next prime is 21115334625181. The reversal of 21115334625162 is 26152643351112.

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, 28846085188 + ... + 28846085919.

It is an arithmetic number, because the mean of its divisors is an integer number (2682685956522).

Almost surely, 2^{21115334625162} is an apocalyptic number.

21115334625162 is an abundant number, since it is smaller than the sum of its proper divisors (21807640679190).

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

21115334625162 is a wasteful number, since it uses less digits than its factorization.

21115334625162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57692171173.

The product of its digits is 259200, while the sum is 42.

Adding to 21115334625162 its reverse (26152643351112), we get a palindrome (47267977976274).

The spelling of 21115334625162 in words is "twenty-one trillion, one hundred fifteen billion, three hundred thirty-four million, six hundred twenty-five thousand, one hundred sixty-two".