159856832041 has 9 divisors (see below), whose sum is σ = 162106246821. Its totient is φ = 157638225312.

The previous prime is 159856831913. The next prime is 159856832053. The reversal of 159856832041 is 140238658951.

It is a happy number.

The square root of 159856832041 is 399821.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 86448348441 + 73408483600 = 294021^2 + 270940^2 .

It is not a de Polignac number, because 159856832041 - 2⁷ = 159856831913 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 159856832041.

It is not an unprimeable number, because it can be changed into a prime (159856832741) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 29184195 + ... + 29189671.

Almost surely, 2^159856832041 is an apocalyptic number.

159856832041 is the 399821-st square number.

159856832041 is the 199911-st centered octagonal number.

It is an amenable number.

159856832041 is a deficient number, since it is larger than the sum of its proper divisors (2249414780).

159856832041 is an frugal number, since it uses more digits than its factorization.

159856832041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11100 (or 5550 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 52.

The spelling of 159856832041 in words is "one hundred fifty-nine billion, eight hundred fifty-six million, eight hundred thirty-two thousand, forty-one".