1183306664401 has 3 divisors (see below), whose sum is σ = 1183307752201. Its totient is φ = 1183305576602.

The previous prime is 1183306664399. The next prime is 1183306664429. The reversal of 1183306664401 is 1044666033811.

The square root of 1183306664401 is 1087799.

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 is not a de Polignac number, because 1183306664401 - 2¹ = 1183306664399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1183306664471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 543900 + ... + 1631698.

Almost surely, 2^{1183306664401} is an apocalyptic number.

1183306664401 is the 1087799-th square number.

1183306664401 is the 543900-th centered octagonal number.

It is an amenable number.

1183306664401 is a deficient number, since it is larger than the sum of its proper divisors (1087800).

1183306664401 is an frugal number, since it uses more digits than its factorization.

1183306664401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2175598 (or 1087799 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 43.

The spelling of 1183306664401 in words is "one trillion, one hundred eighty-three billion, three hundred six million, six hundred sixty-four thousand, four hundred one".