167728140985 has 8 divisors (see below), whose sum is σ = 201541781376. Its totient is φ = 134003838000.

The previous prime is 167728140887. The next prime is 167728141051. The reversal of 167728140985 is 589041827761.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 167728140985 - 2⁷ = 167728140857 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22330219 + ... + 22337728.

It is an arithmetic number, because the mean of its divisors is an integer number (25192722672).

Almost surely, 2^167728140985 is an apocalyptic number.

It is an amenable number.

167728140985 is a deficient number, since it is larger than the sum of its proper divisors (33813640391).

167728140985 is an equidigital number, since it uses as much as digits as its factorization.

167728140985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44668703.

The product of its (nonzero) digits is 6773760, while the sum is 58.

The spelling of 167728140985 in words is "one hundred sixty-seven billion, seven hundred twenty-eight million, one hundred forty thousand, nine hundred eighty-five".