159144720945 has 32 divisors (see below), whose sum is σ = 291215769600. Its totient is φ = 72699802560.

The previous prime is 159144720883. The next prime is 159144720979. The reversal of 159144720945 is 549027441951.

It is not a de Polignac number, because 159144720945 - 2¹¹ = 159144718897 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 394801 + ... + 688590.

It is an arithmetic number, because the mean of its divisors is an integer number (9100492800).

Almost surely, 2^159144720945 is an apocalyptic number.

159144720945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

159144720945 is a deficient number, since it is larger than the sum of its proper divisors (132071048655).

159144720945 is a wasteful number, since it uses less digits than its factorization.

159144720945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1084805.

The product of its (nonzero) digits is 1814400, while the sum is 51.

The spelling of 159144720945 in words is "one hundred fifty-nine billion, one hundred forty-four million, seven hundred twenty thousand, nine hundred forty-five".