1669330116 has 18 divisors (see below), whose sum is σ = 4219695662. Its totient is φ = 556443360.

The previous prime is 1669330109. The next prime is 1669330123. The reversal of 1669330116 is 6110339661.

It is an interprime number because it is at equal distance from previous prime (1669330109) and next prime (1669330123).

It can be written as a sum of positive squares in only one way, i.e., 1623767616 + 45562500 = 40296^2 + 6750^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 46370281 = 1669330116 / (1 + 6 + 6 + 9 + 3 + 3 + 0 + 1 + 1 + 6).

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 23185105 + ... + 23185176.

Almost surely, 2^1669330116 is an apocalyptic number.

It is an amenable number.

1669330116 is an abundant number, since it is smaller than the sum of its proper divisors (2550365546).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1669330116 is a wasteful number, since it uses less digits than its factorization.

1669330116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46370291 (or 46370286 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 1669330116 is about 40857.4364834604. The cubic root of 1669330116 is about 1186.2623390355.

Adding to 1669330116 its reverse (6110339661), we get a palindrome (7779669777).

The spelling of 1669330116 in words is "one billion, six hundred sixty-nine million, three hundred thirty thousand, one hundred sixteen".