1117566623 has 2 divisors, whose sum is σ = 1117566624. Its totient is φ = 1117566622.

The previous prime is 1117566601. The next prime is 1117566661. The reversal of 1117566623 is 3266657111.

It is an a-pointer prime, because the next prime (1117566661) can be obtained adding 1117566623 to its sum of digits (38).

It is a weak prime.

It is an emirp because it is prime and its reverse (3266657111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1117566623 - 2⁸ = 1117566367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1117566673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 558783311 + 558783312.

It is an arithmetic number, because the mean of its divisors is an integer number (558783312).

Almost surely, 2^1117566623 is an apocalyptic number.

1117566623 is a deficient number, since it is larger than the sum of its proper divisors (1).

1117566623 is an equidigital number, since it uses as much as digits as its factorization.

1117566623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 38.

The square root of 1117566623 is about 33430.0257702563. The cubic root of 1117566623 is about 1037.7461740900.

The spelling of 1117566623 in words is "one billion, one hundred seventeen million, five hundred sixty-six thousand, six hundred twenty-three".