321401054066 has 4 divisors (see below), whose sum is σ = 482101581102. Its totient is φ = 160700527032.

The previous prime is 321401054057. The next prime is 321401054081. The reversal of 321401054066 is 660450104123.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 660450104123 = 239 ⋅2763389557.

It can be written as a sum of positive squares in only one way, i.e., 313296553441 + 8104500625 = 559729^2 + 90025^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80350263515 + ... + 80350263518.

Almost surely, 2^321401054066 is an apocalyptic number.

321401054066 is a deficient number, since it is larger than the sum of its proper divisors (160700527036).

321401054066 is a wasteful number, since it uses less digits than its factorization.

321401054066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160700527035.

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 321401054066 its reverse (660450104123), we get a palindrome (981851158189).

The spelling of 321401054066 in words is "three hundred twenty-one billion, four hundred one million, fifty-four thousand, sixty-six".