23173663775808 has 1344 divisors, whose sum is σ = 80489609383680. Its totient is φ = 5827111944192.

The previous prime is 23173663775791. The next prime is 23173663775863. The reversal of 23173663775808 is 80857736637132.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (1344).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 65647772560 + ... + 65647772912.

It is an arithmetic number, because the mean of its divisors is an integer number (59888102220).

Almost surely, 2^{23173663775808} is an apocalyptic number.

23173663775808 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 23173663775808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40244804691840).

23173663775808 is an abundant number, since it is smaller than the sum of its proper divisors (57315945607872).

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

23173663775808 is a wasteful number, since it uses less digits than its factorization.

23173663775808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684 (or 667 counting only the distinct ones).

The product of its (nonzero) digits is 213373440, while the sum is 66.

The spelling of 23173663775808 in words is "twenty-three trillion, one hundred seventy-three billion, six hundred sixty-three million, seven hundred seventy-five thousand, eight hundred eight".