23398660512 has 192 divisors, whose sum is σ = 72729014400. Its totient is φ = 7388630784.

The previous prime is 23398660507. The next prime is 23398660543. The reversal of 23398660512 is 21506689332.

23398660512 is a `hidden beast` number, since 2 + 3 + 39 + 8 + 6 + 605 + 1 + 2 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1320898 + ... + 1338494.

It is an arithmetic number, because the mean of its divisors is an integer number (378796950).

Almost surely, 2^23398660512 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 23398660512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36364507200).

23398660512 is an abundant number, since it is smaller than the sum of its proper divisors (49330353888).

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

23398660512 is an equidigital number, since it uses as much as digits as its factorization.

23398660512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17647 (or 17621 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The spelling of 23398660512 in words is "twenty-three billion, three hundred ninety-eight million, six hundred sixty thousand, five hundred twelve".