16605213560 has 32 divisors (see below), whose sum is σ = 40235711040. Its totient is φ = 6131155584.

The previous prime is 16605213553. The next prime is 16605213589. The reversal of 16605213560 is 6531250661.

It is a self number, because there is not a number n which added to its sum of digits gives 16605213560.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15966032 + ... + 15967071.

It is an arithmetic number, because the mean of its divisors is an integer number (1257365970).

Almost surely, 2^16605213560 is an apocalyptic number.

16605213560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16605213560 is an abundant number, since it is smaller than the sum of its proper divisors (23630497480).

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

16605213560 is a wasteful number, since it uses less digits than its factorization.

16605213560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31933127 (or 31933123 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 35.

The spelling of 16605213560 in words is "sixteen billion, six hundred five million, two hundred thirteen thousand, five hundred sixty".