11566162208 has 12 divisors (see below), whose sum is σ = 22770881910. Its totient is φ = 5783081088.

The previous prime is 11566162171. The next prime is 11566162213. The reversal of 11566162208 is 80226166511.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11502991504 + 63170704 = 107252^2 + 7948^2 .

It is a super-2 number, since 2×11566162208² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180721253 + ... + 180721316.

Almost surely, 2^11566162208 is an apocalyptic number.

It is an amenable number.

11566162208 is a deficient number, since it is larger than the sum of its proper divisors (11204719702).

11566162208 is an equidigital number, since it uses as much as digits as its factorization.

11566162208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361442579 (or 361442571 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The spelling of 11566162208 in words is "eleven billion, five hundred sixty-six million, one hundred sixty-two thousand, two hundred eight".