11345402666 has 8 divisors (see below), whose sum is σ = 18327188964. Its totient is φ = 5236339680.

The previous prime is 11345402641. The next prime is 11345402669. The reversal of 11345402666 is 66620454311.

It can be written as a sum of positive squares in 2 ways, for example, as 11302879225 + 42523441 = 106315^2 + 6521^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (11345402669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218180795 + ... + 218180846.

Almost surely, 2^11345402666 is an apocalyptic number.

11345402666 is a deficient number, since it is larger than the sum of its proper divisors (6981786298).

11345402666 is a wasteful number, since it uses less digits than its factorization.

11345402666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436361656.

The product of its (nonzero) digits is 103680, while the sum is 38.

Adding to 11345402666 its reverse (66620454311), we get a palindrome (77965856977).

The spelling of 11345402666 in words is "eleven billion, three hundred forty-five million, four hundred two thousand, six hundred sixty-six".