130825666 has 4 divisors (see below), whose sum is σ = 196238502. Its totient is φ = 65412832.

The previous prime is 130825661. The next prime is 130825687. The reversal of 130825666 is 666528031.

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

It can be written as a sum of positive squares in only one way, i.e., 112805641 + 18020025 = 10621^2 + 4245^2 .

It is not an unprimeable number, because it can be changed into a prime (130825661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32706415 + ... + 32706418.

Almost surely, 2^130825666 is an apocalyptic number.

130825666 is a deficient number, since it is larger than the sum of its proper divisors (65412836).

130825666 is an equidigital number, since it uses as much as digits as its factorization.

130825666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65412835.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 130825666 is about 11437.9047906511. The cubic root of 130825666 is about 507.6499153473.

The spelling of 130825666 in words is "one hundred thirty million, eight hundred twenty-five thousand, six hundred sixty-six".