11709866144 has 24 divisors (see below), whose sum is σ = 23058977760. Its totient is φ = 5853617856.

The previous prime is 11709866137. The next prime is 11709866171. The reversal of 11709866144 is 44166890711.

It is a happy number.

It is a super-2 number, since 2×11709866144² (a number of 21 digits) contains 22 as substring.

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, 112397 + ... + 189875.

It is an arithmetic number, because the mean of its divisors is an integer number (960790740).

Almost surely, 2^11709866144 is an apocalyptic number.

It is an amenable number.

11709866144 is a deficient number, since it is larger than the sum of its proper divisors (11349111616).

11709866144 is an equidigital number, since it uses as much as digits as its factorization.

11709866144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82212 (or 82204 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 47.

The spelling of 11709866144 in words is "eleven billion, seven hundred nine million, eight hundred sixty-six thousand, one hundred forty-four".