11566755652 has 6 divisors (see below), whose sum is σ = 20241822398. Its totient is φ = 5783377824.

The previous prime is 11566755649. The next prime is 11566755653. The reversal of 11566755652 is 25655766511.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 9820017216 + 1746738436 = 99096^2 + 41794^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11566755596 and 11566755605.

It is not an unprimeable number, because it can be changed into a prime (11566755653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1445844453 + ... + 1445844460.

Almost surely, 2^11566755652 is an apocalyptic number.

It is an amenable number.

11566755652 is a deficient number, since it is larger than the sum of its proper divisors (8675066746).

11566755652 is a wasteful number, since it uses less digits than its factorization.

11566755652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2891688917 (or 2891688915 counting only the distinct ones).

The product of its digits is 1890000, while the sum is 49.

The spelling of 11566755652 in words is "eleven billion, five hundred sixty-six million, seven hundred fifty-five thousand, six hundred fifty-two".