11668491434 has 4 divisors (see below), whose sum is σ = 17502737154. Its totient is φ = 5834245716.

The previous prime is 11668491407. The next prime is 11668491449. The reversal of 11668491434 is 43419486611.

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., 11665080025 + 3411409 = 108005^2 + 1847^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2917122857 + ... + 2917122860.

Almost surely, 2^11668491434 is an apocalyptic number.

11668491434 is a deficient number, since it is larger than the sum of its proper divisors (5834245720).

11668491434 is an equidigital number, since it uses as much as digits as its factorization.

11668491434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5834245719.

The product of its digits is 497664, while the sum is 47.

The spelling of 11668491434 in words is "eleven billion, six hundred sixty-eight million, four hundred ninety-one thousand, four hundred thirty-four".