321664466123 has 32 divisors (see below), whose sum is σ = 432162877440. Its totient is φ = 231218271360.

The previous prime is 321664466119. The next prime is 321664466129.

321664466123 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 321664466123 - 2² = 321664466119 is a prime.

It is a super-2 number, since 2×321664466123² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (321664466129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1466033 + ... + 1671101.

It is an arithmetic number, because the mean of its divisors is an integer number (13505089920).

Almost surely, 2^321664466123 is an apocalyptic number.

321664466123 is a deficient number, since it is larger than the sum of its proper divisors (110498411317).

321664466123 is a wasteful number, since it uses less digits than its factorization.

321664466123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206667.

The product of its digits is 746496, while the sum is 44.

It can be divided in two parts, 321664 and 466123, that added together give a palindrome (787787).

The spelling of 321664466123 in words is "three hundred twenty-one billion, six hundred sixty-four million, four hundred sixty-six thousand, one hundred twenty-three".