159257742591 has 4 divisors (see below), whose sum is σ = 212343656792. Its totient is φ = 106171828392.

The previous prime is 159257742577. The next prime is 159257742689. The reversal of 159257742591 is 195247752951.

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

It is not a de Polignac number, because 159257742591 - 2⁹ = 159257742079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159257742691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26542957096 + ... + 26542957101.

It is an arithmetic number, because the mean of its divisors is an integer number (53085914198).

Almost surely, 2^159257742591 is an apocalyptic number.

159257742591 is a deficient number, since it is larger than the sum of its proper divisors (53085914201).

159257742591 is an equidigital number, since it uses as much as digits as its factorization.

159257742591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53085914200.

The product of its digits is 7938000, while the sum is 57.

The spelling of 159257742591 in words is "one hundred fifty-nine billion, two hundred fifty-seven million, seven hundred forty-two thousand, five hundred ninety-one".