20533170716503 has 8 divisors (see below), whose sum is σ = 21748065403680. Its totient is φ = 19319060597760.

The previous prime is 20533170716491. The next prime is 20533170716551. The reversal of 20533170716503 is 30561707133502.

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

It is not a de Polignac number, because 20533170716503 - 2⁹ = 20533170715991 is a prime.

It is a super-2 number, since 2×20533170716503² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20533170716503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20533170716563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196088218 + ... + 196192903.

It is an arithmetic number, because the mean of its divisors is an integer number (2718508175460).

Almost surely, 2^{20533170716503} is an apocalyptic number.

20533170716503 is a deficient number, since it is larger than the sum of its proper divisors (1214894687177).

20533170716503 is a wasteful number, since it uses less digits than its factorization.

20533170716503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392284217.

The product of its (nonzero) digits is 396900, while the sum is 43.

The spelling of 20533170716503 in words is "twenty trillion, five hundred thirty-three billion, one hundred seventy million, seven hundred sixteen thousand, five hundred three".