21160511104 has 32 divisors (see below), whose sum is σ = 42165208800. Its totient is φ = 10577870592.

The previous prime is 21160511093. The next prime is 21160511137. The reversal of 21160511104 is 40111506112.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 642757 + ... + 674875.

It is an arithmetic number, because the mean of its divisors is an integer number (1317662775).

Almost surely, 2^21160511104 is an apocalyptic number.

It is an amenable number.

21160511104 is a deficient number, since it is larger than the sum of its proper divisors (21004697696).

21160511104 is an equidigital number, since it uses as much as digits as its factorization.

21160511104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37280 (or 37268 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 22.

The spelling of 21160511104 in words is "twenty-one billion, one hundred sixty million, five hundred eleven thousand, one hundred four".