11646332428 has 6 divisors (see below), whose sum is σ = 20381081756. Its totient is φ = 5823166212.

The previous prime is 11646332393. The next prime is 11646332447. The reversal of 11646332428 is 82423364611.

11646332428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 as a sum of consecutive naturals, namely, 1455791550 + ... + 1455791557.

Almost surely, 2^11646332428 is an apocalyptic number.

It is an amenable number.

11646332428 is a deficient number, since it is larger than the sum of its proper divisors (8734749328).

11646332428 is a wasteful number, since it uses less digits than its factorization.

11646332428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2911583111 (or 2911583109 counting only the distinct ones).

The product of its digits is 165888, while the sum is 40.

The spelling of 11646332428 in words is "eleven billion, six hundred forty-six million, three hundred thirty-two thousand, four hundred twenty-eight".