16500075601672 has 64 divisors (see below), whose sum is σ = 33373707822000. Its totient is φ = 7602573496320.

The previous prime is 16500075601663. The next prime is 16500075601679. The reversal of 16500075601672 is 27610657000561.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 2651510695716 + 13848564905956 = 1628346^2 + 3721366^2 .

It is a super-2 number, since 2×16500075601672² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16500075601679) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 153508204 + ... + 153615652.

Almost surely, 2^{16500075601672} is an apocalyptic number.

It is an amenable number.

16500075601672 is an abundant number, since it is smaller than the sum of its proper divisors (16873632220328).

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

16500075601672 is a wasteful number, since it uses less digits than its factorization.

16500075601672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109946 (or 109942 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 46.

The spelling of 16500075601672 in words is "sixteen trillion, five hundred billion, seventy-five million, six hundred one thousand, six hundred seventy-two".