20898452520000 has 560 divisors, whose sum is σ = 83751757108800. Its totient is φ = 5066288640000.

The previous prime is 20898452519957. The next prime is 20898452520013. The reversal of 20898452520000 is 2525489802.

20898452520000 is a `hidden beast` number, since 2 + 0 + 89 + 8 + 45 + 2 + 520 + 0 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 79 ways as a sum of consecutive naturals, for example, 11000436 + ... + 12759564.

Almost surely, 2^{20898452520000} is an apocalyptic number.

20898452520000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20898452520000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41875878554400).

20898452520000 is an abundant number, since it is smaller than the sum of its proper divisors (62853304588800).

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

20898452520000 is a wasteful number, since it uses less digits than its factorization.

20898452520000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1759181 (or 1759150 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 45.

The spelling of 20898452520000 in words is "twenty trillion, eight hundred ninety-eight billion, four hundred fifty-two million, five hundred twenty thousand".