168132209439 has 32 divisors (see below), whose sum is σ = 238332672000. Its totient is φ = 105429086592.

The previous prime is 168132209431. The next prime is 168132209471. The reversal of 168132209439 is 934902231861.

It is not a de Polignac number, because 168132209439 - 2³ = 168132209431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168132209431) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 36240882 + ... + 36245520.

It is an arithmetic number, because the mean of its divisors is an integer number (7447896000).

Almost surely, 2^168132209439 is an apocalyptic number.

168132209439 is a deficient number, since it is larger than the sum of its proper divisors (70200462561).

168132209439 is an equidigital number, since it uses as much as digits as its factorization.

168132209439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7152 (or 7118 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 48.

The spelling of 168132209439 in words is "one hundred sixty-eight billion, one hundred thirty-two million, two hundred nine thousand, four hundred thirty-nine".