20602659168 has 216 divisors, whose sum is σ = 73397626848. Its totient is φ = 5433619968.

The previous prime is 20602659163. The next prime is 20602659221. The reversal of 20602659168 is 86195620602.

20602659168 is a `hidden beast` number, since 20 + 602 + 6 + 5 + 9 + 16 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20602659163) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 127305 + ... + 239607.

It is an arithmetic number, because the mean of its divisors is an integer number (339803828).

Almost surely, 2^20602659168 is an apocalyptic number.

20602659168 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 20602659168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36698813424).

20602659168 is an abundant number, since it is smaller than the sum of its proper divisors (52794967680).

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

20602659168 is a wasteful number, since it uses less digits than its factorization.

20602659168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112346 (or 112328 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The spelling of 20602659168 in words is "twenty billion, six hundred two million, six hundred fifty-nine thousand, one hundred sixty-eight".