1322601004066 has 4 divisors (see below), whose sum is σ = 1983901506102. Its totient is φ = 661300502032.

The previous prime is 1322601004061. The next prime is 1322601004103. The reversal of 1322601004066 is 6604001062231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 882462966025 + 440138038041 = 939395^2 + 663429^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1322601004061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330650251015 + ... + 330650251018.

Almost surely, 2^{1322601004066} is an apocalyptic number.

1322601004066 is a deficient number, since it is larger than the sum of its proper divisors (661300502036).

1322601004066 is an equidigital number, since it uses as much as digits as its factorization.

1322601004066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661300502035.

The product of its (nonzero) digits is 10368, while the sum is 31.

Adding to 1322601004066 its reverse (6604001062231), we get a palindrome (7926602066297).

The spelling of 1322601004066 in words is "one trillion, three hundred twenty-two billion, six hundred one million, four thousand, sixty-six".