20528226068 has 24 divisors (see below), whose sum is σ = 41174112000. Its totient is φ = 8772598368.

The previous prime is 20528226023. The next prime is 20528226137. The reversal of 20528226068 is 86062282502.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1040588 + ... + 1060131.

It is an arithmetic number, because the mean of its divisors is an integer number (1715588000).

Almost surely, 2^20528226068 is an apocalyptic number.

20528226068 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20528226068 is an abundant number, since it is smaller than the sum of its proper divisors (20645885932).

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

20528226068 is a wasteful number, since it uses less digits than its factorization.

20528226068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2101079 (or 2101077 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 41.

The spelling of 20528226068 in words is "twenty billion, five hundred twenty-eight million, two hundred twenty-six thousand, sixty-eight".