11582378266 has 8 divisors (see below), whose sum is σ = 17972656020. Its totient is φ = 5591492928.

The previous prime is 11582378261. The next prime is 11582378303. The reversal of 11582378266 is 66287328511.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11580988225 + 1390041 = 107615^2 + 1179^2 .

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 (11582378261) 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, 99848031 + ... + 99848146.

Almost surely, 2^11582378266 is an apocalyptic number.

11582378266 is a deficient number, since it is larger than the sum of its proper divisors (6390277754).

11582378266 is a wasteful number, since it uses less digits than its factorization.

11582378266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199696208.

The product of its digits is 967680, while the sum is 49.

The spelling of 11582378266 in words is "eleven billion, five hundred eighty-two million, three hundred seventy-eight thousand, two hundred sixty-six".