1669287163 has 8 divisors (see below), whose sum is σ = 1723948416. Its totient is φ = 1614676800.

The previous prime is 1669287157. The next prime is 1669287167. The reversal of 1669287163 is 3617829661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1669287163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1669287167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60783 + ... + 83863.

It is an arithmetic number, because the mean of its divisors is an integer number (215493552).

Almost surely, 2^1669287163 is an apocalyptic number.

1669287163 is a deficient number, since it is larger than the sum of its proper divisors (54661253).

1669287163 is a wasteful number, since it uses less digits than its factorization.

1669287163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25445.

The product of its digits is 653184, while the sum is 49.

The square root of 1669287163 is about 40856.9108352553. The cubic root of 1669287163 is about 1186.2521645025.

The spelling of 1669287163 in words is "one billion, six hundred sixty-nine million, two hundred eighty-seven thousand, one hundred sixty-three".