20838871006360 has 128 divisors (see below), whose sum is σ = 52920271468800. Its totient is φ = 7315566773760.

The previous prime is 20838871006351. The next prime is 20838871006363. The reversal of 20838871006360 is 6360017883802.

It is a super-2 number, since 2×20838871006360² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20838871006298 and 20838871006307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20838871006363) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 107942479 + ... + 108135361.

It is an arithmetic number, because the mean of its divisors is an integer number (413439620850).

Almost surely, 2^{20838871006360} is an apocalyptic number.

20838871006360 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 20838871006360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26460135734400).

20838871006360 is an abundant number, since it is smaller than the sum of its proper divisors (32081400462440).

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

20838871006360 is a wasteful number, since it uses less digits than its factorization.

20838871006360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201401 (or 201397 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 52.

The spelling of 20838871006360 in words is "twenty trillion, eight hundred thirty-eight billion, eight hundred seventy-one million, six thousand, three hundred sixty".