1135661135656 has 16 divisors (see below), whose sum is σ = 2129654488500. Its totient is φ = 567753272064.

The previous prime is 1135661135639. The next prime is 1135661135701. The reversal of 1135661135656 is 6565311665311.

It can be written as a sum of positive squares in 2 ways, for example, as 980634672900 + 155026462756 = 990270^2 + 393734^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9599505 + ... + 9717088.

Almost surely, 2^{1135661135656} is an apocalyptic number.

It is an amenable number.

1135661135656 is a deficient number, since it is larger than the sum of its proper divisors (993993352844).

1135661135656 is a wasteful number, since it uses less digits than its factorization.

1135661135656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19323948 (or 19323944 counting only the distinct ones).

The product of its digits is 1458000, while the sum is 49.

The spelling of 1135661135656 in words is "one trillion, one hundred thirty-five billion, six hundred sixty-one million, one hundred thirty-five thousand, six hundred fifty-six".