20608326288 has 160 divisors (see below), whose sum is σ = 67927795200. Its totient is φ = 5916240000.

The previous prime is 20608326199. The next prime is 20608326293. The reversal of 20608326288 is 88262380602.

20608326288 is a `hidden beast` number, since 2 + 0 + 608 + 32 + 6 + 2 + 8 + 8 = 666.

It is a super-2 number, since 2×20608326288² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23838 + ... + 204413.

It is an arithmetic number, because the mean of its divisors is an integer number (424548720).

Almost surely, 2^20608326288 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 20608326288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33963897600).

20608326288 is an abundant number, since it is smaller than the sum of its proper divisors (47319468912).

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

20608326288 is a wasteful number, since it uses less digits than its factorization.

20608326288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228298 (or 228286 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 45.

The spelling of 20608326288 in words is "twenty billion, six hundred eight million, three hundred twenty-six thousand, two hundred eighty-eight".