20529020398 has 16 divisors (see below), whose sum is σ = 31317080400. Its totient is φ = 10090195200.

The previous prime is 20529020389. The next prime is 20529020417. The reversal of 20529020398 is 89302092502.

20529020398 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 20529020398.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157758 + ... + 256798.

It is an arithmetic number, because the mean of its divisors is an integer number (1957317525).

Almost surely, 2^20529020398 is an apocalyptic number.

20529020398 is a deficient number, since it is larger than the sum of its proper divisors (10788060002).

20529020398 is a wasteful number, since it uses less digits than its factorization.

20529020398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100803.

The product of its (nonzero) digits is 77760, while the sum is 40.

The spelling of 20529020398 in words is "twenty billion, five hundred twenty-nine million, twenty thousand, three hundred ninety-eight".