20260110111540 has 192 divisors, whose sum is σ = 61473395418624. Its totient is φ = 4955986870272.

The previous prime is 20260110111509. The next prime is 20260110111559. The reversal of 20260110111540 is 4511101106202.

It is a self number, because there is not a number n which added to its sum of digits gives 20260110111540.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 580551372 + ... + 580586268.

It is an arithmetic number, because the mean of its divisors is an integer number (320173934472).

Almost surely, 2^{20260110111540} is an apocalyptic number.

20260110111540 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 20260110111540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30736697709312).

20260110111540 is an abundant number, since it is smaller than the sum of its proper divisors (41213285307084).

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

20260110111540 is a wasteful number, since it uses less digits than its factorization.

20260110111540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39546 (or 39544 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 24.

Adding to 20260110111540 its reverse (4511101106202), we get a palindrome (24771211217742).

The spelling of 20260110111540 in words is "twenty trillion, two hundred sixty billion, one hundred ten million, one hundred eleven thousand, five hundred forty".