21134018176 has 32 divisors (see below), whose sum is σ = 42111010080. Its totient is φ = 10564980480.

The previous prime is 21134018083. The next prime is 21134018189. The reversal of 21134018176 is 67181043112.

It is a tau number, because it is divible by the number of its divisors (32).

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 3 ways as a sum of consecutive naturals, for example, 828525 + ... + 853651.

It is an arithmetic number, because the mean of its divisors is an integer number (1315969065).

Almost surely, 2^21134018176 is an apocalyptic number.

It is an amenable number.

21134018176 is a deficient number, since it is larger than the sum of its proper divisors (20976991904).

21134018176 is an equidigital number, since it uses as much as digits as its factorization.

21134018176 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31712 (or 31700 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 34.

The spelling of 21134018176 in words is "twenty-one billion, one hundred thirty-four million, eighteen thousand, one hundred seventy-six".