23144105555 has 4 divisors (see below), whose sum is σ = 27772926672. Its totient is φ = 18515284440.

The previous prime is 23144105533. The next prime is 23144105591. The reversal of 23144105555 is 55550144132.

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

It is not a de Polignac number, because 23144105555 - 2¹⁰ = 23144104531 is a prime.

It is a Duffinian number.

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, 2314410551 + ... + 2314410560.

It is an arithmetic number, because the mean of its divisors is an integer number (6943231668).

Almost surely, 2^23144105555 is an apocalyptic number.

23144105555 is a deficient number, since it is larger than the sum of its proper divisors (4628821117).

23144105555 is an equidigital number, since it uses as much as digits as its factorization.

23144105555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4628821116.

The product of its (nonzero) digits is 60000, while the sum is 35.

Adding to 23144105555 its reverse (55550144132), we get a palindrome (78694249687).

The spelling of 23144105555 in words is "twenty-three billion, one hundred forty-four million, one hundred five thousand, five hundred fifty-five".