20573641019880 has 512 divisors, whose sum is σ = 78217542950400. Its totient is φ = 4765218619392.

The previous prime is 20573641019879. The next prime is 20573641019909. The reversal of 20573641019880 is 8891014637502.

20573641019880 is a `hidden beast` number, since 2 + 0 + 5 + 7 + 36 + 410 + 198 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

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 127 ways as a sum of consecutive naturals, for example, 1330155907 + ... + 1330171373.

It is an arithmetic number, because the mean of its divisors is an integer number (152768638575).

It is a 1-persistent number, because it is pandigital, but 2⋅20573641019880 = 41147282039760 is not.

Almost surely, 2^{20573641019880} is an apocalyptic number.

20573641019880 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 20573641019880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39108771475200).

20573641019880 is an abundant number, since it is smaller than the sum of its proper divisors (57643901930520).

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

20573641019880 is a wasteful number, since it uses less digits than its factorization.

20573641019880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21090 (or 21080 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The spelling of 20573641019880 in words is "twenty trillion, five hundred seventy-three billion, six hundred forty-one million, nineteen thousand, eight hundred eighty".