20013363527220 has 288 divisors, whose sum is σ = 70976654880768. Its totient is φ = 4469518722816.

The previous prime is 20013363527219. The next prime is 20013363527233. The reversal of 20013363527220 is 2272536331002.

20013363527220 is a `hidden beast` number, since 2 + 0 + 0 + 1 + 3 + 363 + 5 + 272 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 34474279 + ... + 35050001.

It is an arithmetic number, because the mean of its divisors is an integer number (246446718336).

Almost surely, 2^{20013363527220} is an apocalyptic number.

20013363527220 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 20013363527220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35488327440384).

20013363527220 is an abundant number, since it is smaller than the sum of its proper divisors (50963291353548).

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

20013363527220 is a wasteful number, since it uses less digits than its factorization.

20013363527220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576379 (or 576374 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 36.

Adding to 20013363527220 its reverse (2272536331002), we get a palindrome (22285899858222).

The spelling of 20013363527220 in words is "twenty trillion, thirteen billion, three hundred sixty-three million, five hundred twenty-seven thousand, two hundred twenty".