21618814133082 has 64 divisors (see below), whose sum is σ = 44708286357504. Its totient is φ = 6964714713600.

The previous prime is 21618814133071. The next prime is 21618814133159. The reversal of 21618814133082 is 28033141881612.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 127723207 + ... + 127892357.

It is an arithmetic number, because the mean of its divisors is an integer number (698566974336).

Almost surely, 2^{21618814133082} is an apocalyptic number.

21618814133082 is an abundant number, since it is smaller than the sum of its proper divisors (23089472224422).

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

21618814133082 is a wasteful number, since it uses less digits than its factorization.

21618814133082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174403.

The product of its (nonzero) digits is 442368, while the sum is 48.

The spelling of 21618814133082 in words is "twenty-one trillion, six hundred eighteen billion, eight hundred fourteen million, one hundred thirty-three thousand, eighty-two".