159188800639409 has 4 divisors (see below), whose sum is σ = 159334444556916. Its totient is φ = 159043156721904.

The previous prime is 159188800639381. The next prime is 159188800639423. The reversal of 159188800639409 is 904936008881951.

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 115065954534400 + 44122846105009 = 10726880^2 + 6642503^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-159188800639409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (159188800639109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72821957114 + ... + 72821959299.

It is an arithmetic number, because the mean of its divisors is an integer number (39833611139229).

Almost surely, 2^{159188800639409} is an apocalyptic number.

It is an amenable number.

159188800639409 is a deficient number, since it is larger than the sum of its proper divisors (145643917507).

159188800639409 is a wasteful number, since it uses less digits than its factorization.

159188800639409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145643917506.

The product of its (nonzero) digits is 134369280, while the sum is 71.

The spelling of 159188800639409 in words is "one hundred fifty-nine trillion, one hundred eighty-eight billion, eight hundred million, six hundred thirty-nine thousand, four hundred nine".