1669368543 has 16 divisors (see below), whose sum is σ = 2355319296. Its totient is φ = 1049528480.

The previous prime is 1669368541. The next prime is 1669368619. The reversal of 1669368543 is 3458639661.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1669368543 - 2¹ = 1669368541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1669368541) 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, 165480 + ... + 175277.

It is an arithmetic number, because the mean of its divisors is an integer number (147207456).

Almost surely, 2^1669368543 is an apocalyptic number.

1669368543 is a deficient number, since it is larger than the sum of its proper divisors (685950753).

1669368543 is a wasteful number, since it uses less digits than its factorization.

1669368543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340854.

The product of its digits is 2799360, while the sum is 51.

The square root of 1669368543 is about 40857.9067378641. The cubic root of 1669368543 is about 1186.2714413201.

The spelling of 1669368543 in words is "one billion, six hundred sixty-nine million, three hundred sixty-eight thousand, five hundred forty-three".