334221578161 has 27 divisors (see below), whose sum is σ = 367195163457. Its totient is φ = 304136843520.

The previous prime is 334221578143. The next prime is 334221578191. The reversal of 334221578161 is 161875122433.

It is a happy number.

The square root of 334221578161 is 578119.

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

It can be written as a sum of positive squares in 4 ways, for example, as 1754018161 + 332467560000 = 41881^2 + 576600^2 .

It is a de Polignac number, because none of the positive numbers 2^k-334221578161 is a prime.

It is a super-2 number, since 2×334221578161² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (334221578191) 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 26 ways as a sum of consecutive naturals, for example, 304668165 + ... + 304669261.

Almost surely, 2^334221578161 is an apocalyptic number.

334221578161 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

334221578161 is the 578119-th square number.

334221578161 is the 289060-th centered octagonal number.

It is an amenable number.

334221578161 is a deficient number, since it is larger than the sum of its proper divisors (32973585296).

334221578161 is an frugal number, since it uses more digits than its factorization.

334221578161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2290 (or 1145 counting only the distinct ones).

The product of its digits is 241920, while the sum is 43.

The spelling of 334221578161 in words is "three hundred thirty-four billion, two hundred twenty-one million, five hundred seventy-eight thousand, one hundred sixty-one".