1165556132 has 12 divisors (see below), whose sum is σ = 2196625116. Its totient is φ = 537948960.

The previous prime is 1165556123. The next prime is 1165556153. The reversal of 1165556132 is 2316555611.

It can be written as a sum of positive squares in 2 ways, for example, as 557243236 + 608312896 = 23606^2 + 24664^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1165556092 and 1165556101.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11207219 + ... + 11207322.

It is an arithmetic number, because the mean of its divisors is an integer number (183052093).

Almost surely, 2^1165556132 is an apocalyptic number.

It is an amenable number.

1165556132 is a deficient number, since it is larger than the sum of its proper divisors (1031068984).

1165556132 is a wasteful number, since it uses less digits than its factorization.

1165556132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22414558 (or 22414556 counting only the distinct ones).

The product of its digits is 27000, while the sum is 35.

The square root of 1165556132 is about 34140.2421198210. The cubic root of 1165556132 is about 1052.3924680304.

The spelling of 1165556132 in words is "one billion, one hundred sixty-five million, five hundred fifty-six thousand, one hundred thirty-two".