23325021216 has 144 divisors (see below), whose sum is σ = 76720198464. Its totient is φ = 6583951872.

The previous prime is 23325021197. The next prime is 23325021227. The reversal of 23325021216 is 61212052332.

It is a happy number.

23325021216 is a `hidden beast` number, since 2 + 3 + 32 + 502 + 121 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×23325021216² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23325021216.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97630 + ... + 237026.

It is an arithmetic number, because the mean of its divisors is an integer number (532779156).

Almost surely, 2^23325021216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23325021216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38360099232).

23325021216 is an abundant number, since it is smaller than the sum of its proper divisors (53395177248).

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

23325021216 is a wasteful number, since it uses less digits than its factorization.

23325021216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139503 (or 139492 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 23325021216 its reverse (61212052332), we get a palindrome (84537073548).

The spelling of 23325021216 in words is "twenty-three billion, three hundred twenty-five million, twenty-one thousand, two hundred sixteen".