23166305255519 has 2 divisors, whose sum is σ = 23166305255520. Its totient is φ = 23166305255518.

The previous prime is 23166305255477. The next prime is 23166305255531. The reversal of 23166305255519 is 91555250366132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23166305255519 - 2¹⁶ = 23166305189983 is a prime.

It is a super-2 number, since 2×23166305255519² (a number of 28 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23166305755519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11583152627759 + 11583152627760.

It is an arithmetic number, because the mean of its divisors is an integer number (11583152627760).

Almost surely, 2^{23166305255519} is an apocalyptic number.

23166305255519 is a deficient number, since it is larger than the sum of its proper divisors (1).

23166305255519 is an equidigital number, since it uses as much as digits as its factorization.

23166305255519 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7290000, while the sum is 53.

The spelling of 23166305255519 in words is "twenty-three trillion, one hundred sixty-six billion, three hundred five million, two hundred fifty-five thousand, five hundred nineteen".