20568514968 has 48 divisors (see below), whose sum is σ = 55713078720. Its totient is φ = 6855349056.

The previous prime is 20568514949. The next prime is 20568514979. The reversal of 20568514968 is 86941586502.

20568514968 is a `hidden beast` number, since 2 + 0 + 5 + 68 + 514 + 9 + 68 = 666.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 1019830 + ... + 1039802.

It is an arithmetic number, because the mean of its divisors is an integer number (1160689140).

Almost surely, 2^20568514968 is an apocalyptic number.

It is an amenable number.

20568514968 is an abundant number, since it is smaller than the sum of its proper divisors (35144563752).

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

20568514968 is a wasteful number, since it uses less digits than its factorization.

20568514968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34288 (or 34281 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 54.

The spelling of 20568514968 in words is "twenty billion, five hundred sixty-eight million, five hundred fourteen thousand, nine hundred sixty-eight".