23533323550440 has 128 divisors (see below), whose sum is σ = 77946079680000. Its totient is φ = 5636312587520.

The previous prime is 23533323550379. The next prime is 23533323550507. The reversal of 23533323550440 is 4405532333532.

It is a junction number, because it is equal to n+sod(n) for n = 23533323550392 and 23533323550401.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 107289690 + ... + 107508809.

It is an arithmetic number, because the mean of its divisors is an integer number (608953747500).

Almost surely, 2^{23533323550440} is an apocalyptic number.

23533323550440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23533323550440 is an abundant number, since it is smaller than the sum of its proper divisors (54412756129560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23533323550440 is a wasteful number, since it uses less digits than its factorization.

23533323550440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214798607 (or 214798603 counting only the distinct ones).

The product of its (nonzero) digits is 1944000, while the sum is 42.

Adding to 23533323550440 its reverse (4405532333532), we get a palindrome (27938855883972).

The spelling of 23533323550440 in words is "twenty-three trillion, five hundred thirty-three billion, three hundred twenty-three million, five hundred fifty thousand, four hundred forty".