1165659656 has 32 divisors (see below), whose sum is σ = 2504960640. Its totient is φ = 498144768.

The previous prime is 1165659589. The next prime is 1165659661. The reversal of 1165659656 is 6569565611.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 9716 + ... + 49251.

It is an arithmetic number, because the mean of its divisors is an integer number (78280020).

Almost surely, 2^1165659656 is an apocalyptic number.

It is an amenable number.

1165659656 is an abundant number, since it is smaller than the sum of its proper divisors (1339300984).

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

1165659656 is a wasteful number, since it uses less digits than its factorization.

1165659656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59333 (or 59329 counting only the distinct ones).

The product of its digits is 1458000, while the sum is 50.

The square root of 1165659656 is about 34141.7582441209. The cubic root of 1165659656 is about 1052.4236247316.

The spelling of 1165659656 in words is "one billion, one hundred sixty-five million, six hundred fifty-nine thousand, six hundred fifty-six".