20103665110540 has 24 divisors (see below), whose sum is σ = 46055669162832. Its totient is φ = 7310423676480.

The previous prime is 20103665110517. The next prime is 20103665110541. The reversal of 20103665110540 is 4501156630102.

It is a junction number, because it is equal to n+sod(n) for n = 20103665110496 and 20103665110505.

It is not an unprimeable number, because it can be changed into a prime (20103665110541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45690147759 + ... + 45690148198.

It is an arithmetic number, because the mean of its divisors is an integer number (1918986215118).

Almost surely, 2^{20103665110540} is an apocalyptic number.

20103665110540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20103665110540 is an abundant number, since it is smaller than the sum of its proper divisors (25952004052292).

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

20103665110540 is a wasteful number, since it uses less digits than its factorization.

20103665110540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91380295977 (or 91380295975 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

The spelling of 20103665110540 in words is "twenty trillion, one hundred three billion, six hundred sixty-five million, one hundred ten thousand, five hundred forty".