10159943905 has 4 divisors (see below), whose sum is σ = 12191932692. Its totient is φ = 8127955120.

The previous prime is 10159943887. The next prime is 10159943909. The reversal of 10159943905 is 50934995101.

It is a happy number.

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 7041391569 + 3118552336 = 83913^2 + 55844^2 .

It is not a de Polignac number, because 10159943905 - 2¹³ = 10159935713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10159943909) 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, 1015994386 + ... + 1015994395.

It is an arithmetic number, because the mean of its divisors is an integer number (3047983173).

Almost surely, 2^10159943905 is an apocalyptic number.

It is an amenable number.

10159943905 is a deficient number, since it is larger than the sum of its proper divisors (2031988787).

10159943905 is an equidigital number, since it uses as much as digits as its factorization.

10159943905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2031988786.

The product of its (nonzero) digits is 218700, while the sum is 46.

The spelling of 10159943905 in words is "ten billion, one hundred fifty-nine million, nine hundred forty-three thousand, nine hundred five".