11971550504 has 32 divisors (see below), whose sum is σ = 22543353000. Its totient is φ = 5960048640.

The previous prime is 11971550491. The next prime is 11971550537. The reversal of 11971550504 is 40505517911.

11971550504 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 5867253604 + 6104296900 = 76598^2 + 78130^2 .

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, 1868234 + ... + 1874630.

Almost surely, 2^11971550504 is an apocalyptic number.

It is an amenable number.

11971550504 is a deficient number, since it is larger than the sum of its proper divisors (10571802496).

11971550504 is a wasteful number, since it uses less digits than its factorization.

11971550504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7373 (or 7369 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 38.

The spelling of 11971550504 in words is "eleven billion, nine hundred seventy-one million, five hundred fifty thousand, five hundred four".