1690163169 has 8 divisors (see below), whose sum is σ = 2253771072. Its totient is φ = 1126665360.

The previous prime is 1690163159. The next prime is 1690163191. The reversal of 1690163169 is 9613610961.

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

It is not a de Polignac number, because 1690163169 - 2⁸ = 1690162913 is a prime.

It is a super-2 number, since 2×1690163169² = 5713303075688245122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1690163169.

It is not an unprimeable number, because it can be changed into a prime (1690163129) 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, 20047 + ... + 61499.

It is an arithmetic number, because the mean of its divisors is an integer number (281721384).

Almost surely, 2^1690163169 is an apocalyptic number.

It is an amenable number.

1690163169 is a deficient number, since it is larger than the sum of its proper divisors (563607903).

1690163169 is a wasteful number, since it uses less digits than its factorization.

1690163169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55047.

The product of its (nonzero) digits is 52488, while the sum is 42.

The square root of 1690163169 is about 41111.5940946103. The cubic root of 1690163169 is about 1191.1767586503.

The spelling of 1690163169 in words is "one billion, six hundred ninety million, one hundred sixty-three thousand, one hundred sixty-nine".