159243075658 has 4 divisors (see below), whose sum is σ = 238864613490. Its totient is φ = 79621537828.

The previous prime is 159243075647. The next prime is 159243075757. The reversal of 159243075658 is 856570342951.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 103823795089 + 55419280569 = 322217^2 + 235413^2 .

It is a junction number, because it is equal to n+sod(n) for n = 159243075599 and 159243075608.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39810768913 + ... + 39810768916.

It is a 1-persistent number, because it is pandigital, but 2⋅159243075658 = 318486151316 is not.

Almost surely, 2^159243075658 is an apocalyptic number.

159243075658 is a deficient number, since it is larger than the sum of its proper divisors (79621537832).

159243075658 is an equidigital number, since it uses as much as digits as its factorization.

159243075658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79621537831.

The product of its (nonzero) digits is 9072000, while the sum is 55.

The spelling of 159243075658 in words is "one hundred fifty-nine billion, two hundred forty-three million, seventy-five thousand, six hundred fifty-eight".