21113146506404 has 12 divisors (see below), whose sum is σ = 36948440914224. Its totient is φ = 10556449102344.

The previous prime is 21113146506391. The next prime is 21113146506421. The reversal of 21113146506404 is 40460564131112.

It is a super-2 number, since 2×21113146506404² (a number of 27 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 30654554 + ... + 31335729.

It is an arithmetic number, because the mean of its divisors is an integer number (3079036742852).

Almost surely, 2^{21113146506404} is an apocalyptic number.

It is an amenable number.

21113146506404 is a deficient number, since it is larger than the sum of its proper divisors (15835294407820).

21113146506404 is a wasteful number, since it uses less digits than its factorization.

21113146506404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62075434 (or 62075432 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 38.

The spelling of 21113146506404 in words is "twenty-one trillion, one hundred thirteen billion, one hundred forty-six million, five hundred six thousand, four hundred four".