11671203772 has 6 divisors (see below), whose sum is σ = 20424606608. Its totient is φ = 5835601884.

The previous prime is 11671203763. The next prime is 11671203821. The reversal of 11671203772 is 27730217611.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1458900468 + ... + 1458900475.

Almost surely, 2^11671203772 is an apocalyptic number.

It is an amenable number.

11671203772 is a deficient number, since it is larger than the sum of its proper divisors (8753402836).

11671203772 is a wasteful number, since it uses less digits than its factorization.

11671203772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2917800947 (or 2917800945 counting only the distinct ones).

The product of its (nonzero) digits is 24696, while the sum is 37.

The spelling of 11671203772 in words is "eleven billion, six hundred seventy-one million, two hundred three thousand, seven hundred seventy-two".