11521660922 has 8 divisors (see below), whose sum is σ = 17286763476. Its totient is φ = 5759406432.

The previous prime is 11521660901. The next prime is 11521660939. The reversal of 11521660922 is 22906612511.

It is a happy number.

It is a Cunningham number, because it is equal to 107339²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 11521660921 + 1 = 107339^2 + 1^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 701873 + ... + 718100.

Almost surely, 2^11521660922 is an apocalyptic number.

11521660922 is a deficient number, since it is larger than the sum of its proper divisors (5765102554).

11521660922 is a wasteful number, since it uses less digits than its factorization.

11521660922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1424032.

The product of its (nonzero) digits is 12960, while the sum is 35.

The spelling of 11521660922 in words is "eleven billion, five hundred twenty-one million, six hundred sixty thousand, nine hundred twenty-two".