1156665052 has 24 divisors (see below), whose sum is σ = 2131897040. Its totient is φ = 547585920.

The previous prime is 1156665043. The next prime is 1156665053. The reversal of 1156665052 is 2505666511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1156665053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188578 + ... + 194614.

Almost surely, 2^1156665052 is an apocalyptic number.

It is an amenable number.

1156665052 is a deficient number, since it is larger than the sum of its proper divisors (975231988).

1156665052 is a wasteful number, since it uses less digits than its factorization.

1156665052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8581 (or 8579 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 37.

The square root of 1156665052 is about 34009.7787702302. The cubic root of 1156665052 is about 1049.7096860274.

The spelling of 1156665052 in words is "one billion, one hundred fifty-six million, six hundred sixty-five thousand, fifty-two".