11640766472 has 8 divisors (see below), whose sum is σ = 21826437150. Its totient is φ = 5820383232.

The previous prime is 11640766429. The next prime is 11640766573. The reversal of 11640766472 is 27466704611.

It can be written as a sum of positive squares in only one way, i.e., 10042845796 + 1597920676 = 100214^2 + 39974^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 727547897 + ... + 727547912.

Almost surely, 2^11640766472 is an apocalyptic number.

It is an amenable number.

11640766472 is a deficient number, since it is larger than the sum of its proper divisors (10185670678).

11640766472 is a wasteful number, since it uses less digits than its factorization.

11640766472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1455095815 (or 1455095811 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 44.

The spelling of 11640766472 in words is "eleven billion, six hundred forty million, seven hundred sixty-six thousand, four hundred seventy-two".