16451647125 has 32 divisors (see below), whose sum is σ = 27439326720. Its totient is φ = 8753768000.

The previous prime is 16451647123. The next prime is 16451647129. The reversal of 16451647125 is 52174615461.

16451647125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16451647125 - 2¹ = 16451647123 is a prime.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16451647123) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 110731 + ... + 212519.

It is an arithmetic number, because the mean of its divisors is an integer number (857478960).

Almost surely, 2^16451647125 is an apocalyptic number.

16451647125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16451647125 is a deficient number, since it is larger than the sum of its proper divisors (10987679595).

16451647125 is a wasteful number, since it uses less digits than its factorization.

16451647125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102238 (or 102228 counting only the distinct ones).

The product of its digits is 201600, while the sum is 42.

The spelling of 16451647125 in words is "sixteen billion, four hundred fifty-one million, six hundred forty-seven thousand, one hundred twenty-five".