159393427762321 has 3 divisors (see below), whose sum is σ = 159393440387433. Its totient is φ = 159393415137210.

The previous prime is 159393427762273. The next prime is 159393427762343. The reversal of 159393427762321 is 123267724393951.

The square root of 159393427762321 is 12625111.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 159393427762321 - 2⁷ = 159393427762193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (159393427765321) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 6312556 + ... + 18937666.

It is an arithmetic number, because the mean of its divisors is an integer number (53131146795811).

Almost surely, 2^{159393427762321} is an apocalyptic number.

159393427762321 is the 12625111-st square number.

159393427762321 is the 6312556-th centered octagonal number.

It is an amenable number.

159393427762321 is a deficient number, since it is larger than the sum of its proper divisors (12625112).

159393427762321 is an frugal number, since it uses more digits than its factorization.

159393427762321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25250222 (or 12625111 counting only the distinct ones).

The product of its digits is 102876480, while the sum is 64.

The spelling of 159393427762321 in words is "one hundred fifty-nine trillion, three hundred ninety-three billion, four hundred twenty-seven million, seven hundred sixty-two thousand, three hundred twenty-one".