16670431575445 has 16 divisors (see below), whose sum is σ = 21181407035760. Its totient is φ = 12551763815424.

The previous prime is 16670431575443. The next prime is 16670431575503. The reversal of 16670431575445 is 54457513407661.

It can be written as a sum of positive squares in 8 ways, for example, as 268563369361 + 16401868206084 = 518231^2 + 4049922^2 .

It is a cyclic number.

It is not a de Polignac number, because 16670431575445 - 2¹ = 16670431575443 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16670431575445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16670431575443) 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, 12611191 + ... + 13870219.

It is an arithmetic number, because the mean of its divisors is an integer number (1323837939735).

Almost surely, 2^{16670431575445} is an apocalyptic number.

It is an amenable number.

16670431575445 is a deficient number, since it is larger than the sum of its proper divisors (4510975460315).

16670431575445 is a wasteful number, since it uses less digits than its factorization.

16670431575445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1414824.

The product of its (nonzero) digits is 42336000, while the sum is 58.

The spelling of 16670431575445 in words is "sixteen trillion, six hundred seventy billion, four hundred thirty-one million, five hundred seventy-five thousand, four hundred forty-five".