16530686880 has 96 divisors (see below), whose sum is σ = 52104523968. Its totient is φ = 4405401600.

The previous prime is 16530686863. The next prime is 16530686911. The reversal of 16530686880 is 8868603561.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 816075 + ... + 836085.

It is an arithmetic number, because the mean of its divisors is an integer number (542755458).

Almost surely, 2^16530686880 is an apocalyptic number.

16530686880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16530686880 is an abundant number, since it is smaller than the sum of its proper divisors (35573837088).

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

16530686880 is a wasteful number, since it uses less digits than its factorization.

16530686880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21750 (or 21742 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 51.

The spelling of 16530686880 in words is "sixteen billion, five hundred thirty million, six hundred eighty-six thousand, eight hundred eighty".