16546447505125 has 32 divisors (see below), whose sum is σ = 20662548940800. Its totient is φ = 13229095499200.

The previous prime is 16546447505117. The next prime is 16546447505183. The reversal of 16546447505125 is 52150574464561.

It is not a de Polignac number, because 16546447505125 - 2³ = 16546447505117 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2281320999 + ... + 2281328251.

It is an arithmetic number, because the mean of its divisors is an integer number (645704654400).

Almost surely, 2^{16546447505125} is an apocalyptic number.

It is an amenable number.

16546447505125 is a deficient number, since it is larger than the sum of its proper divisors (4116101435675).

16546447505125 is an equidigital number, since it uses as much as digits as its factorization.

16546447505125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15870 (or 15860 counting only the distinct ones).

The product of its (nonzero) digits is 20160000, while the sum is 55.

The spelling of 16546447505125 in words is "sixteen trillion, five hundred forty-six billion, four hundred forty-seven million, five hundred five thousand, one hundred twenty-five".