159421811004 has 54 divisors (see below), whose sum is σ = 403804182600. Its totient is φ = 53032376592.

The previous prime is 159421810997. The next prime is 159421811039. The reversal of 159421811004 is 400118124951.

159421811004 is a `hidden beast` number, since 1 + 59 + 421 + 81 + 100 + 4 = 666.

159421811004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 159421811004.

It is a congruent number.

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 58631157 + ... + 58633875.

Almost surely, 2^159421811004 is an apocalyptic number.

It is an amenable number.

159421811004 is an abundant number, since it is smaller than the sum of its proper divisors (244382371596).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

159421811004 is an equidigital number, since it uses as much as digits as its factorization.

159421811004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6047 (or 3323 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 36.

Adding to 159421811004 its reverse (400118124951), we get a palindrome (559539935955).

The spelling of 159421811004 in words is "one hundred fifty-nine billion, four hundred twenty-one million, eight hundred eleven thousand, four".