159855220609 has 12 divisors (see below), whose sum is σ = 194038991424. Its totient is φ = 131061422184.

The previous prime is 159855220571. The next prime is 159855220627. The reversal of 159855220609 is 906022558951.

It is not a de Polignac number, because 159855220609 - 2¹³ = 159855212417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (159855220409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70919557 + ... + 70921810.

It is an arithmetic number, because the mean of its divisors is an integer number (16169915952).

Almost surely, 2^159855220609 is an apocalyptic number.

It is an amenable number.

159855220609 is a deficient number, since it is larger than the sum of its proper divisors (34183770815).

159855220609 is a wasteful number, since it uses less digits than its factorization.

159855220609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141841404 (or 141841397 counting only the distinct ones).

The product of its (nonzero) digits is 1944000, while the sum is 52.

It can be divided in two parts, 1598552 and 20609, that added together give a palindrome (1619161).

The spelling of 159855220609 in words is "one hundred fifty-nine billion, eight hundred fifty-five million, two hundred twenty thousand, six hundred nine".