23217216442542 has 96 divisors (see below), whose sum is σ = 53085534278400. Its totient is φ = 7318774590336.

The previous prime is 23217216442531. The next prime is 23217216442549. The reversal of 23217216442542 is 24524461271232.

23217216442542 is a `hidden beast` number, since 2 + 3 + 2 + 1 + 7 + 2 + 1 + 64 + 42 + 542 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23217216442549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 594638073 + ... + 594677115.

It is an arithmetic number, because the mean of its divisors is an integer number (552974315400).

Almost surely, 2^{23217216442542} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23217216442542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26542767139200).

23217216442542 is an abundant number, since it is smaller than the sum of its proper divisors (29868317835858).

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

23217216442542 is a wasteful number, since it uses less digits than its factorization.

23217216442542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55302 (or 55299 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 45.

The spelling of 23217216442542 in words is "twenty-three trillion, two hundred seventeen billion, two hundred sixteen million, four hundred forty-two thousand, five hundred forty-two".