1136665656 has 64 divisors (see below), whose sum is σ = 3608467200. Its totient is φ = 324761184.

The previous prime is 1136665619. The next prime is 1136665657. The reversal of 1136665656 is 6565666311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1136665657) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 374370 + ... + 377393.

It is an arithmetic number, because the mean of its divisors is an integer number (56382300).

Almost surely, 2^1136665656 is an apocalyptic number.

It is an amenable number.

1136665656 is an abundant number, since it is smaller than the sum of its proper divisors (2471801544).

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

1136665656 is a wasteful number, since it uses less digits than its factorization.

1136665656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751785 (or 751775 counting only the distinct ones).

The product of its digits is 583200, while the sum is 45.

The square root of 1136665656 is about 33714.4725006932. The cubic root of 1136665656 is about 1043.6244520557.

The spelling of 1136665656 in words is "one billion, one hundred thirty-six million, six hundred sixty-five thousand, six hundred fifty-six".