20533452651165 has 8 divisors (see below), whose sum is σ = 32853524241888. Its totient is φ = 10951174747280.

The previous prime is 20533452651163. The next prime is 20533452651169. The reversal of 20533452651165 is 56115625433502.

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

It is not a de Polignac number, because 20533452651165 - 2¹ = 20533452651163 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20533452651163) 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, 684448421691 + ... + 684448421720.

It is an arithmetic number, because the mean of its divisors is an integer number (4106690530236).

Almost surely, 2^{20533452651165} is an apocalyptic number.

It is an amenable number.

20533452651165 is a deficient number, since it is larger than the sum of its proper divisors (12320071590723).

20533452651165 is a wasteful number, since it uses less digits than its factorization.

20533452651165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1368896843419.

The product of its (nonzero) digits is 3240000, while the sum is 48.

The spelling of 20533452651165 in words is "twenty trillion, five hundred thirty-three billion, four hundred fifty-two million, six hundred fifty-one thousand, one hundred sixty-five".