20338552168 has 192 divisors, whose sum is σ = 45217105920. Its totient is φ = 8553600000.

The previous prime is 20338552159. The next prime is 20338552177. The reversal of 20338552168 is 86125583302.

It is an interprime number because it is at equal distance from previous prime (20338552159) and next prime (20338552177).

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 47 ways as a sum of consecutive naturals, for example, 75049873 + ... + 75050143.

It is an arithmetic number, because the mean of its divisors is an integer number (235505760).

Almost surely, 2^20338552168 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 20338552168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22608552960).

20338552168 is an abundant number, since it is smaller than the sum of its proper divisors (24878553752).

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

20338552168 is a wasteful number, since it uses less digits than its factorization.

20338552168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432 (or 417 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 43.

The spelling of 20338552168 in words is "twenty billion, three hundred thirty-eight million, five hundred fifty-two thousand, one hundred sixty-eight".