11666601424 has 40 divisors (see below), whose sum is σ = 24580567368. Its totient is φ = 5341777920.

The previous prime is 11666601383. The next prime is 11666601437. The reversal of 11666601424 is 42410666611.

11666601424 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1956469824 + 9710131600 = 44232^2 + 98540^2 .

It is a super-2 number, since 2×11666601424² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 569557 + ... + 589684.

Almost surely, 2^11666601424 is an apocalyptic number.

It is an amenable number.

11666601424 is an abundant number, since it is smaller than the sum of its proper divisors (12913965944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11666601424 is a wasteful number, since it uses less digits than its factorization.

11666601424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1159303 (or 1159297 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The spelling of 11666601424 in words is "eleven billion, six hundred sixty-six million, six hundred one thousand, four hundred twenty-four".