23420244555 has 16 divisors (see below), whose sum is σ = 41635990560. Its totient is φ = 12490797024.

The previous prime is 23420244539. The next prime is 23420244559. The reversal of 23420244555 is 55544202432.

23420244555 is a `hidden beast` number, since 2 + 3 + 4 + 202 + 445 + 5 + 5 = 666.

It is not a de Polignac number, because 23420244555 - 2⁴ = 23420244539 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23420244559) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 86741512 + ... + 86741781.

It is an arithmetic number, because the mean of its divisors is an integer number (2602249410).

Almost surely, 2^23420244555 is an apocalyptic number.

23420244555 is a deficient number, since it is larger than the sum of its proper divisors (18215746005).

23420244555 is a wasteful number, since it uses less digits than its factorization.

23420244555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173483307 (or 173483301 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 36.

Adding to 23420244555 its reverse (55544202432), we get a palindrome (78964446987).

The spelling of 23420244555 in words is "twenty-three billion, four hundred twenty million, two hundred forty-four thousand, five hundred fifty-five".