20259338589520 has 40 divisors (see below), whose sum is σ = 49150917104256. Its totient is φ = 7751399111808.

The previous prime is 20259338589509. The next prime is 20259338589521. The reversal of 20259338589520 is 2598583395202.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20259338589521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5505253212 + ... + 5505256891.

Almost surely, 2^{20259338589520} is an apocalyptic number.

20259338589520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20259338589520 is an abundant number, since it is smaller than the sum of its proper divisors (28891578514736).

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

20259338589520 is a wasteful number, since it uses less digits than its factorization.

20259338589520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11010510139 (or 11010510133 counting only the distinct ones).

The product of its (nonzero) digits is 46656000, while the sum is 61.

The spelling of 20259338589520 in words is "twenty trillion, two hundred fifty-nine billion, three hundred thirty-eight million, five hundred eighty-nine thousand, five hundred twenty".