20189529298920 has 64 divisors (see below), whose sum is σ = 62657159904000. Its totient is φ = 5198223634688.

The previous prime is 20189529298901. The next prime is 20189529298927. The reversal of 20189529298920 is 2989292598102.

It is not an unprimeable number, because it can be changed into a prime (20189529298927) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2900790960 + ... + 2900797919.

It is an arithmetic number, because the mean of its divisors is an integer number (979018123500).

Almost surely, 2^{20189529298920} is an apocalyptic number.

20189529298920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20189529298920 is an abundant number, since it is smaller than the sum of its proper divisors (42467630605080).

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

20189529298920 is a wasteful number, since it uses less digits than its factorization.

20189529298920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5801588922 (or 5801588918 counting only the distinct ones).

The product of its (nonzero) digits is 33592320, while the sum is 66.

The spelling of 20189529298920 in words is "twenty trillion, one hundred eighty-nine billion, five hundred twenty-nine million, two hundred ninety-eight thousand, nine hundred twenty".