23155444454 has 8 divisors (see below), whose sum is σ = 34755168360. Its totient is φ = 11570388336.

The previous prime is 23155444453. The next prime is 23155444463. The reversal of 23155444454 is 45444455132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23155444453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3662999 + ... + 3669314.

It is an arithmetic number, because the mean of its divisors is an integer number (4344396045).

Almost surely, 2^23155444454 is an apocalyptic number.

23155444454 is a deficient number, since it is larger than the sum of its proper divisors (11599723906).

23155444454 is a wasteful number, since it uses less digits than its factorization.

23155444454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7333894.

The product of its digits is 768000, while the sum is 41.

Adding to 23155444454 its reverse (45444455132), we get a palindrome (68599899586).

The spelling of 23155444454 in words is "twenty-three billion, one hundred fifty-five million, four hundred forty-four thousand, four hundred fifty-four".