20533550214617 has 4 divisors (see below), whose sum is σ = 22400236597776. Its totient is φ = 18666863831460.

The previous prime is 20533550214601. The next prime is 20533550214703. The reversal of 20533550214617 is 71641205533502.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20533550214617 - 2⁴ = 20533550214601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20533550214017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 933343191563 + ... + 933343191584.

It is an arithmetic number, because the mean of its divisors is an integer number (5600059149444).

Almost surely, 2^{20533550214617} is an apocalyptic number.

It is an amenable number.

20533550214617 is a deficient number, since it is larger than the sum of its proper divisors (1866686383159).

20533550214617 is a wasteful number, since it uses less digits than its factorization.

20533550214617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1866686383158.

The product of its (nonzero) digits is 756000, while the sum is 44.

The spelling of 20533550214617 in words is "twenty trillion, five hundred thirty-three billion, five hundred fifty million, two hundred fourteen thousand, six hundred seventeen".