23440023151155 has 24 divisors (see below), whose sum is σ = 43754709883248. Its totient is φ = 11539703704896.

The previous prime is 23440023151093. The next prime is 23440023151159. The reversal of 23440023151155 is 55115132004432.

23440023151155 is a `hidden beast` number, since 2 + 3 + 4 + 400 + 231 + 5 + 1 + 15 + 5 = 666.

It is not a de Polignac number, because 23440023151155 - 2⁸ = 23440023150899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23440023151159) 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 23 ways as a sum of consecutive naturals, for example, 20034207237 + ... + 20034208406.

It is an arithmetic number, because the mean of its divisors is an integer number (1823112911802).

Almost surely, 2^{23440023151155} is an apocalyptic number.

23440023151155 is a deficient number, since it is larger than the sum of its proper divisors (20314686732093).

23440023151155 is a wasteful number, since it uses less digits than its factorization.

23440023151155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40068415667 (or 40068415664 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

Adding to 23440023151155 its reverse (55115132004432), we get a palindrome (78555155155587).

The spelling of 23440023151155 in words is "twenty-three trillion, four hundred forty billion, twenty-three million, one hundred fifty-one thousand, one hundred fifty-five".