130166669 has 4 divisors (see below), whose sum is σ = 130274844. Its totient is φ = 130058496.

The previous prime is 130166651. The next prime is 130166711. The reversal of 130166669 is 966661031.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28761769 + 101404900 = 5363^2 + 10070^2 .

It is a cyclic number.

It is not a de Polignac number, because 130166669 - 2¹² = 130162573 is a prime.

It is a super-2 number, since 2×130166669² = 33886723437111122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130166369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52262 + ... + 54695.

It is an arithmetic number, because the mean of its divisors is an integer number (32568711).

Almost surely, 2^130166669 is an apocalyptic number.

It is an amenable number.

130166669 is a deficient number, since it is larger than the sum of its proper divisors (108175).

130166669 is a wasteful number, since it uses less digits than its factorization.

130166669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108174.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 130166669 is about 11409.0608290078. The cubic root of 130166669 is about 506.7960995404.

The spelling of 130166669 in words is "one hundred thirty million, one hundred sixty-six thousand, six hundred sixty-nine".