159381986401 has 4 divisors (see below), whose sum is σ = 173871257904. Its totient is φ = 144892714900.

The previous prime is 159381986399. The next prime is 159381986411. The reversal of 159381986401 is 104689183951.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 159381986401 - 2¹ = 159381986399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (159381986411) 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, 7244635735 + ... + 7244635756.

It is an arithmetic number, because the mean of its divisors is an integer number (43467814476).

Almost surely, 2^159381986401 is an apocalyptic number.

159381986401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

159381986401 is a deficient number, since it is larger than the sum of its proper divisors (14489271503).

159381986401 is a wasteful number, since it uses less digits than its factorization.

159381986401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14489271502.

The product of its (nonzero) digits is 1866240, while the sum is 55.

The spelling of 159381986401 in words is "one hundred fifty-nine billion, three hundred eighty-one million, nine hundred eighty-six thousand, four hundred one".