1669041499 has 8 divisors (see below), whose sum is σ = 1675607040. Its totient is φ = 1662487656.

The previous prime is 1669041469. The next prime is 1669041503. The reversal of 1669041499 is 9941409661.

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

It is a cyclic number.

It is not a de Polignac number, because 1669041499 - 2⁷ = 1669041371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1669041469) 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 7 ways as a sum of consecutive naturals, for example, 371742 + ... + 376204.

It is an arithmetic number, because the mean of its divisors is an integer number (209450880).

Almost surely, 2^1669041499 is an apocalyptic number.

1669041499 is a deficient number, since it is larger than the sum of its proper divisors (6565541).

1669041499 is a wasteful number, since it uses less digits than its factorization.

1669041499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5849.

The product of its (nonzero) digits is 419904, while the sum is 49.

The square root of 1669041499 is about 40853.9043299413. The cubic root of 1669041499 is about 1186.1939692530.

The spelling of 1669041499 in words is "one billion, six hundred sixty-nine million, forty-one thousand, four hundred ninety-nine".