159990234243936 has 96 divisors (see below), whose sum is σ = 433125001064448. Its totient is φ = 51679687288320.

The previous prime is 159990234243911. The next prime is 159990234243937. The reversal of 159990234243936 is 639342432099951.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159990234243937) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152063635 + ... + 153112146.

It is an arithmetic number, because the mean of its divisors is an integer number (4511718761088).

Almost surely, 2^{159990234243936} is an apocalyptic number.

159990234243936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

159990234243936 is an abundant number, since it is smaller than the sum of its proper divisors (273134766820512).

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

159990234243936 is a wasteful number, since it uses less digits than its factorization.

159990234243936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305175964 (or 305175956 counting only the distinct ones).

The product of its (nonzero) digits is 340122240, while the sum is 69.

The spelling of 159990234243936 in words is "one hundred fifty-nine trillion, nine hundred ninety billion, two hundred thirty-four million, two hundred forty-three thousand, nine hundred thirty-six".