131430258666 has 48 divisors (see below), whose sum is σ = 337499932224. Its totient is φ = 37551501504.

The previous prime is 131430258643. The next prime is 131430258683. The reversal of 131430258666 is 666852034131.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19313215 + ... + 19320018.

It is an arithmetic number, because the mean of its divisors is an integer number (7031248588).

Almost surely, 2^131430258666 is an apocalyptic number.

131430258666 is an abundant number, since it is smaller than the sum of its proper divisors (206069673558).

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

131430258666 is an equidigital number, since it uses as much as digits as its factorization.

131430258666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38633257 (or 38633245 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 131430258666 in words is "one hundred thirty-one billion, four hundred thirty million, two hundred fifty-eight thousand, six hundred sixty-six".