16547125820 has 12 divisors (see below), whose sum is σ = 34748964264. Its totient is φ = 6618850320.

The previous prime is 16547125817. The next prime is 16547125841. The reversal of 16547125820 is 2852174561.

16547125820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 413678126 + ... + 413678165.

It is an arithmetic number, because the mean of its divisors is an integer number (2895747022).

Almost surely, 2^16547125820 is an apocalyptic number.

16547125820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16547125820 is an abundant number, since it is smaller than the sum of its proper divisors (18201838444).

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

16547125820 is a wasteful number, since it uses less digits than its factorization.

16547125820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 827356300 (or 827356298 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 41.

The spelling of 16547125820 in words is "sixteen billion, five hundred forty-seven million, one hundred twenty-five thousand, eight hundred twenty".