16172075447 has 16 divisors (see below), whose sum is σ = 17996525568. Its totient is φ = 14407330080.

The previous prime is 16172075429. The next prime is 16172075453. The reversal of 16172075447 is 74457027161.

It is not a de Polignac number, because 16172075447 - 2⁸ = 16172075191 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16172075398 and 16172075407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16172075467) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 487058 + ... + 519200.

It is an arithmetic number, because the mean of its divisors is an integer number (1124782848).

Almost surely, 2^16172075447 is an apocalyptic number.

16172075447 is a deficient number, since it is larger than the sum of its proper divisors (1824450121).

16172075447 is a wasteful number, since it uses less digits than its factorization.

16172075447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33070.

The product of its (nonzero) digits is 329280, while the sum is 44.

The spelling of 16172075447 in words is "sixteen billion, one hundred seventy-two million, seventy-five thousand, four hundred forty-seven".