130665266 has 4 divisors (see below), whose sum is σ = 195997902. Its totient is φ = 65332632.

The previous prime is 130665263. The next prime is 130665287. The reversal of 130665266 is 662566031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 662566031 = 73 ⋅9076247.

It can be written as a sum of positive squares in only one way, i.e., 129390625 + 1274641 = 11375^2 + 1129^2 .

It is not an unprimeable number, because it can be changed into a prime (130665263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32666315 + ... + 32666318.

Almost surely, 2^130665266 is an apocalyptic number.

130665266 is a deficient number, since it is larger than the sum of its proper divisors (65332636).

130665266 is an equidigital number, since it uses as much as digits as its factorization.

130665266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65332635.

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 130665266 is about 11430.8908664198. The cubic root of 130665266 is about 507.4423608979.

The spelling of 130665266 in words is "one hundred thirty million, six hundred sixty-five thousand, two hundred sixty-six".