159680447 has 4 divisors (see below), whose sum is σ = 159705816. Its totient is φ = 159655080.

The previous prime is 159680431. The next prime is 159680449. The reversal of 159680447 is 744086951.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 744086951 = 1213 ⋅613427.

It is a cyclic number.

It is not a de Polignac number, because 159680447 - 2⁴ = 159680431 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 159680398 and 159680407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159680449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4697 + ... + 18477.

It is an arithmetic number, because the mean of its divisors is an integer number (39926454).

Almost surely, 2^159680447 is an apocalyptic number.

159680447 is a deficient number, since it is larger than the sum of its proper divisors (25369).

159680447 is a wasteful number, since it uses less digits than its factorization.

159680447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25368.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 159680447 is about 12636.4728860549. The cubic root of 159680447 is about 542.5218656551.

The spelling of 159680447 in words is "one hundred fifty-nine million, six hundred eighty thousand, four hundred forty-seven".