159533277968 has 20 divisors (see below), whose sum is σ = 309133524828. Its totient is φ = 79756884480.

The previous prime is 159533277931. The next prime is 159533278027. The reversal of 159533277968 is 869772335951.

It can be written as a sum of positive squares in 2 ways, for example, as 89312517904 + 70220760064 = 298852^2 + 264992^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 473813 + ... + 737268.

Almost surely, 2^159533277968 is an apocalyptic number.

It is an amenable number.

159533277968 is a deficient number, since it is larger than the sum of its proper divisors (149600246860).

159533277968 is a wasteful number, since it uses less digits than its factorization.

159533277968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1219322 (or 1219316 counting only the distinct ones).

The product of its digits is 85730400, while the sum is 65.

The spelling of 159533277968 in words is "one hundred fifty-nine billion, five hundred thirty-three million, two hundred seventy-seven thousand, nine hundred sixty-eight".