1165660356 has 48 divisors (see below), whose sum is σ = 3132932096. Its totient is φ = 330420384.

The previous prime is 1165660343. The next prime is 1165660361. The reversal of 1165660356 is 6530665611.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43966 + ... + 65301.

Almost surely, 2^1165660356 is an apocalyptic number.

It is an amenable number.

1165660356 is an abundant number, since it is smaller than the sum of its proper divisors (1967271740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1165660356 is a wasteful number, since it uses less digits than its factorization.

1165660356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109408 (or 109406 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 39.

The square root of 1165660356 is about 34141.7684954954. The cubic root of 1165660356 is about 1052.4238353981.

The spelling of 1165660356 in words is "one billion, one hundred sixty-five million, six hundred sixty thousand, three hundred fifty-six".