159169556449 has 8 divisors (see below), whose sum is σ = 159309876672. Its totient is φ = 159029295600.

The previous prime is 159169556353. The next prime is 159169556453. The reversal of 159169556449 is 944655961951.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-159169556449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (159169556849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6578524 + ... + 6602674.

It is an arithmetic number, because the mean of its divisors is an integer number (19913734584).

Almost surely, 2^159169556449 is an apocalyptic number.

It is an amenable number.

159169556449 is a deficient number, since it is larger than the sum of its proper divisors (140320223).

159169556449 is a wasteful number, since it uses less digits than its factorization.

159169556449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29687.

The product of its digits is 52488000, while the sum is 64.

The spelling of 159169556449 in words is "one hundred fifty-nine billion, one hundred sixty-nine million, five hundred fifty-six thousand, four hundred forty-nine".