16673543055625 has 45 divisors (see below), whose sum is σ = 20954957789689. Its totient is φ = 13262639600000.

The previous prime is 16673543055623. The next prime is 16673543055641. The reversal of 16673543055625 is 52655034537661.

The square root of 16673543055625 is 4083325.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 22 ways, for example, as 16039360176889 + 634182878736 = 4004917^2 + 796356^2 .

It is not a de Polignac number, because 16673543055625 - 2¹ = 16673543055623 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16673543055625.

It is not an unprimeable number, because it can be changed into a prime (16673543055623) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 23785367775 + ... + 23785368475.

Almost surely, 2^{16673543055625} is an apocalyptic number.

16673543055625 is the 4083325-th square number.

16673543055625 is the 2041663-rd centered octagonal number.

It is an amenable number.

16673543055625 is a deficient number, since it is larger than the sum of its proper divisors (4281414734064).

16673543055625 is an frugal number, since it uses more digits than its factorization.

16673543055625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1888 (or 939 counting only the distinct ones).

The product of its (nonzero) digits is 68040000, while the sum is 58.

The spelling of 16673543055625 in words is "sixteen trillion, six hundred seventy-three billion, five hundred forty-three million, fifty-five thousand, six hundred twenty-five".