23535548568 has 160 divisors (see below), whose sum is σ = 75431980800. Its totient is φ = 6716115648.

The previous prime is 23535548567. The next prime is 23535548573. The reversal of 23535548568 is 86584553532.

It is a happy number.

23535548568 is a `hidden beast` number, since 2 + 3 + 5 + 3 + 554 + 85 + 6 + 8 = 666.

It is a Cunningham number, because it is equal to 153413²-1.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23535548563) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4292853 + ... + 4298331.

It is an arithmetic number, because the mean of its divisors is an integer number (471449880).

Almost surely, 2^23535548568 is an apocalyptic number.

23535548568 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23535548568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37715990400).

23535548568 is an abundant number, since it is smaller than the sum of its proper divisors (51896432232).

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

23535548568 is a wasteful number, since it uses less digits than its factorization.

23535548568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6451 (or 6438 counting only the distinct ones).

The product of its digits is 17280000, while the sum is 54.

The spelling of 23535548568 in words is "twenty-three billion, five hundred thirty-five million, five hundred forty-eight thousand, five hundred sixty-eight".