16217135056 has 20 divisors (see below), whose sum is σ = 33074420800. Its totient is φ = 7681800672.

The previous prime is 16217135047. The next prime is 16217135141. The reversal of 16217135056 is 65053171261.

It is a congruent number.

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, 26672616 + ... + 26673223.

It is an arithmetic number, because the mean of its divisors is an integer number (1653721040).

Almost surely, 2^16217135056 is an apocalyptic number.

16217135056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16217135056 is an abundant number, since it is smaller than the sum of its proper divisors (16857285744).

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

16217135056 is a wasteful number, since it uses less digits than its factorization.

16217135056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53345866 (or 53345860 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 37.

The spelling of 16217135056 in words is "sixteen billion, two hundred seventeen million, one hundred thirty-five thousand, fifty-six".