11530765156 has 12 divisors (see below), whose sum is σ = 20184575292. Its totient is φ = 5763743648.

The previous prime is 11530765079. The next prime is 11530765159. The reversal of 11530765156 is 65156703511.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3966984256 + 7563780900 = 62984^2 + 86970^2 .

It is not an unprimeable number, because it can be changed into a prime (11530765159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 393835 + ... + 422098.

It is an arithmetic number, because the mean of its divisors is an integer number (1682047941).

Almost surely, 2^11530765156 is an apocalyptic number.

It is an amenable number.

11530765156 is a deficient number, since it is larger than the sum of its proper divisors (8653810136).

11530765156 is a wasteful number, since it uses less digits than its factorization.

11530765156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819470 (or 819468 counting only the distinct ones).

The product of its (nonzero) digits is 94500, while the sum is 40.

The spelling of 11530765156 in words is "eleven billion, five hundred thirty million, seven hundred sixty-five thousand, one hundred fifty-six".