160647289921 has 8 divisors (see below), whose sum is σ = 162688106880. Its totient is φ = 158606655792.

The previous prime is 160647289889. The next prime is 160647289949. The reversal of 160647289921 is 129982746061.

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

It is a cyclic number.

It is not a de Polignac number, because 160647289921 - 2⁵ = 160647289889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (160647289951) by changing a digit.

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, 3011346 + ... + 3064228.

It is an arithmetic number, because the mean of its divisors is an integer number (20336013360).

Almost surely, 2^160647289921 is an apocalyptic number.

It is an amenable number.

160647289921 is a deficient number, since it is larger than the sum of its proper divisors (2040816959).

160647289921 is an equidigital number, since it uses as much as digits as its factorization.

160647289921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91415.

The product of its (nonzero) digits is 2612736, while the sum is 55.

The spelling of 160647289921 in words is "one hundred sixty billion, six hundred forty-seven million, two hundred eighty-nine thousand, nine hundred twenty-one".