1123657165583 has 4 divisors (see below), whose sum is σ = 1123662782208. Its totient is φ = 1123651548960.

The previous prime is 1123657165529. The next prime is 1123657165601. The reversal of 1123657165583 is 3855617563211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1123657165583 - 2⁸ = 1123657165327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123657165513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2496698 + ... + 2912183.

It is an arithmetic number, because the mean of its divisors is an integer number (280915695552).

Almost surely, 2^{1123657165583} is an apocalyptic number.

1123657165583 is a deficient number, since it is larger than the sum of its proper divisors (5616625).

1123657165583 is an equidigital number, since it uses as much as digits as its factorization.

1123657165583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5616624.

The product of its digits is 4536000, while the sum is 53.

The spelling of 1123657165583 in words is "one trillion, one hundred twenty-three billion, six hundred fifty-seven million, one hundred sixty-five thousand, five hundred eighty-three".