11566490434 has 8 divisors (see below), whose sum is σ = 17352341820. Its totient is φ = 5782376496.

The previous prime is 11566490423. The next prime is 11566490477. The reversal of 11566490434 is 43409466511.

It can be written as a sum of positive squares in 2 ways, for example, as 11566357209 + 133225 = 107547^2 + 365^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 417589 + ... + 444424.

Almost surely, 2^11566490434 is an apocalyptic number.

11566490434 is a deficient number, since it is larger than the sum of its proper divisors (5785851386).

11566490434 is an equidigital number, since it uses as much as digits as its factorization.

11566490434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868724.

The product of its (nonzero) digits is 311040, while the sum is 43.

The spelling of 11566490434 in words is "eleven billion, five hundred sixty-six million, four hundred ninety thousand, four hundred thirty-four".