159840419929 has 4 divisors (see below), whose sum is σ = 159869189284. Its totient is φ = 159811650576.

The previous prime is 159840419909. The next prime is 159840420023. The reversal of 159840419929 is 929914048951.

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

It can be written as a sum of positive squares in 2 ways, for example, as 85177589904 + 74662830025 = 291852^2 + 273245^2 .

It is a cyclic number.

It is not a de Polignac number, because 159840419929 - 2⁷ = 159840419801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (159840419909) 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, 14376342 + ... + 14387455.

It is an arithmetic number, because the mean of its divisors is an integer number (39967297321).

Almost surely, 2^159840419929 is an apocalyptic number.

It is an amenable number.

159840419929 is a deficient number, since it is larger than the sum of its proper divisors (28769355).

159840419929 is an equidigital number, since it uses as much as digits as its factorization.

159840419929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28769354.

The product of its (nonzero) digits is 8398080, while the sum is 61.

The spelling of 159840419929 in words is "one hundred fifty-nine billion, eight hundred forty million, four hundred nineteen thousand, nine hundred twenty-nine".