10817972205503 has 8 divisors (see below), whose sum is σ = 10821779376768. Its totient is φ = 10814165372824.

The previous prime is 10817972205497. The next prime is 10817972205511. The reversal of 10817972205503 is 30550227971801.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10817972205503 - 2³⁸ = 10543094298559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10817972205533) 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, 75450200 + ... + 75593442.

It is an arithmetic number, because the mean of its divisors is an integer number (1352722422096).

Almost surely, 2^{10817972205503} is an apocalyptic number.

10817972205503 is a deficient number, since it is larger than the sum of its proper divisors (3807171265).

10817972205503 is a wasteful number, since it uses less digits than its factorization.

10817972205503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169293.

The product of its (nonzero) digits is 1058400, while the sum is 50.

The spelling of 10817972205503 in words is "ten trillion, eight hundred seventeen billion, nine hundred seventy-two million, two hundred five thousand, five hundred three".