11013531664 has 20 divisors (see below), whose sum is σ = 21388012156. Its totient is φ = 5494044672.

The previous prime is 11013531653. The next prime is 11013531689. The reversal of 11013531664 is 46613531011.

It can be written as a sum of positive squares in 2 ways, for example, as 3787171600 + 7226360064 = 61540^2 + 85008^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 787929 + ... + 801784.

Almost surely, 2^11013531664 is an apocalyptic number.

It is an amenable number.

11013531664 is a deficient number, since it is larger than the sum of its proper divisors (10374480492).

11013531664 is a wasteful number, since it uses less digits than its factorization.

11013531664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1590154 (or 1590148 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The spelling of 11013531664 in words is "eleven billion, thirteen million, five hundred thirty-one thousand, six hundred sixty-four".