20103261734880 has 672 divisors, whose sum is σ = 73272967667424. Its totient is φ = 5205994426368.

The previous prime is 20103261734873. The next prime is 20103261734903. The reversal of 20103261734880 is 8843716230102.

20103261734880 is a `hidden beast` number, since 2 + 0 + 10 + 32 + 61 + 73 + 488 + 0 = 666.

It is a super-2 number, since 2×20103261734880² (a number of 27 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 2403829579 + ... + 2403837941.

It is an arithmetic number, because the mean of its divisors is an integer number (109037154267).

Almost surely, 2^{20103261734880} is an apocalyptic number.

20103261734880 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 20103261734880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36636483833712).

20103261734880 is an abundant number, since it is smaller than the sum of its proper divisors (53169705932544).

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

20103261734880 is an equidigital number, since it uses as much as digits as its factorization.

20103261734880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8990 (or 8967 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

Adding to 20103261734880 its reverse (8843716230102), we get a palindrome (28946977964982).

The spelling of 20103261734880 in words is "twenty trillion, one hundred three billion, two hundred sixty-one million, seven hundred thirty-four thousand, eight hundred eighty".