16125330444 has 48 divisors (see below), whose sum is σ = 37728423936. Its totient is φ = 5360472000.

The previous prime is 16125330443. The next prime is 16125330449. The reversal of 16125330444 is 44403352161.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (16125330443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13769979 + ... + 13771149.

It is an arithmetic number, because the mean of its divisors is an integer number (786008832).

Almost surely, 2^16125330444 is an apocalyptic number.

It is an amenable number.

16125330444 is an abundant number, since it is smaller than the sum of its proper divisors (21603093492).

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

16125330444 is a wasteful number, since it uses less digits than its factorization.

16125330444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3326 (or 3324 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 33.

The spelling of 16125330444 in words is "sixteen billion, one hundred twenty-five million, three hundred thirty thousand, four hundred forty-four".