159933781249 has 16 divisors (see below), whose sum is σ = 182334628224. Its totient is φ = 138862310400.

The previous prime is 159933781243. The next prime is 159933781349. The reversal of 159933781249 is 942187339951.

It is not a de Polignac number, because 159933781249 - 2²¹ = 159931684097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (159933781243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 310944 + ... + 645409.

It is an arithmetic number, because the mean of its divisors is an integer number (11395914264).

Almost surely, 2^159933781249 is an apocalyptic number.

It is an amenable number.

159933781249 is a deficient number, since it is larger than the sum of its proper divisors (22400846975).

159933781249 is a wasteful number, since it uses less digits than its factorization.

159933781249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 957048.

The product of its digits is 14696640, while the sum is 61.

The spelling of 159933781249 in words is "one hundred fifty-nine billion, nine hundred thirty-three million, seven hundred eighty-one thousand, two hundred forty-nine".