159742631805 has 16 divisors (see below), whose sum is σ = 255593185344. Its totient is φ = 85194412160.

The previous prime is 159742631767. The next prime is 159742631843. The reversal of 159742631805 is 508136247951.

It is an interprime number because it is at equal distance from previous prime (159742631767) and next prime (159742631843).

It is not a de Polignac number, because 159742631805 - 2¹¹ = 159742629757 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1355242 + ... + 1468388.

It is an arithmetic number, because the mean of its divisors is an integer number (15974574084).

It is a 1-persistent number, because it is pandigital, but 2⋅159742631805 = 319485263610 is not.

Almost surely, 2^159742631805 is an apocalyptic number.

159742631805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

159742631805 is a deficient number, since it is larger than the sum of its proper divisors (95850553539).

159742631805 is a wasteful number, since it uses less digits than its factorization.

159742631805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207276.

The product of its (nonzero) digits is 1814400, while the sum is 51.

The spelling of 159742631805 in words is "one hundred fifty-nine billion, seven hundred forty-two million, six hundred thirty-one thousand, eight hundred five".