23403220033544 has 32 divisors (see below), whose sum is σ = 47257676094720. Its totient is φ = 10801217802816.

The previous prime is 23403220033451. The next prime is 23403220033577. The reversal of 23403220033544 is 44533002230432.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1441259 + ... + 6991685.

It is an arithmetic number, because the mean of its divisors is an integer number (1476802377960).

Almost surely, 2^{23403220033544} is an apocalyptic number.

It is an amenable number.

23403220033544 is an abundant number, since it is smaller than the sum of its proper divisors (23854456061176).

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

23403220033544 is a wasteful number, since it uses less digits than its factorization.

23403220033544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5590989 (or 5590985 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 35.

Adding to 23403220033544 its reverse (44533002230432), we get a palindrome (67936222263976).

The spelling of 23403220033544 in words is "twenty-three trillion, four hundred three billion, two hundred twenty million, thirty-three thousand, five hundred forty-four".