346780832161 has 3 divisors (see below), whose sum is σ = 346781421043. Its totient is φ = 346780243280.

The previous prime is 346780832149. The next prime is 346780832171. The reversal of 346780832161 is 161238087643.

The square root of 346780832161 is 588881.

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 can be written as a sum of positive squares in only one way, i.e., 271617126561 + 75163705600 = 521169^2 + 274160^2 .

It is not a de Polignac number, because 346780832161 - 2¹³ = 346780823969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (346780832131) 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, 294441 + ... + 883321.

Almost surely, 2^346780832161 is an apocalyptic number.

346780832161 is the 588881-st square number.

346780832161 is the 294441-st centered octagonal number.

It is an amenable number.

346780832161 is a deficient number, since it is larger than the sum of its proper divisors (588882).

346780832161 is an frugal number, since it uses more digits than its factorization.

346780832161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1177762 (or 588881 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 49.

Multiplying 346780832161 by its sum of digits (49), we get a square (16992260775889 = 4122167²).

The spelling of 346780832161 in words is "three hundred forty-six billion, seven hundred eighty million, eight hundred thirty-two thousand, one hundred sixty-one".