21106166021324 has 24 divisors (see below), whose sum is σ = 38267958736896. Its totient is φ = 10174975866000.

The previous prime is 21106166021323. The next prime is 21106166021327. The reversal of 21106166021324 is 42312066160112.

It is not an unprimeable number, because it can be changed into a prime (21106166021323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 314008862 + ... + 314076069.

It is an arithmetic number, because the mean of its divisors is an integer number (1594498280704).

Almost surely, 2^{21106166021324} is an apocalyptic number.

It is an amenable number.

21106166021324 is a deficient number, since it is larger than the sum of its proper divisors (17161792715572).

21106166021324 is a wasteful number, since it uses less digits than its factorization.

21106166021324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628085237 (or 628085235 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The spelling of 21106166021324 in words is "twenty-one trillion, one hundred six billion, one hundred sixty-six million, twenty-one thousand, three hundred twenty-four".