159239749667 has 4 divisors (see below), whose sum is σ = 159720836856. Its totient is φ = 158758662480.

The previous prime is 159239749663. The next prime is 159239749673. The reversal of 159239749667 is 766947932951.

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

It is a cyclic number.

It is not a de Polignac number, because 159239749667 - 2² = 159239749663 is a prime.

It is a super-2 number, since 2×159239749667² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 159239749597 and 159239749606.

It is not an unprimeable number, because it can be changed into a prime (159239749663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240543098 + ... + 240543759.

It is an arithmetic number, because the mean of its divisors is an integer number (39930209214).

Almost surely, 2^159239749667 is an apocalyptic number.

159239749667 is a deficient number, since it is larger than the sum of its proper divisors (481087189).

159239749667 is an equidigital number, since it uses as much as digits as its factorization.

159239749667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481087188.

The product of its digits is 154314720, while the sum is 68.

The spelling of 159239749667 in words is "one hundred fifty-nine billion, two hundred thirty-nine million, seven hundred forty-nine thousand, six hundred sixty-seven".