20753346955369 has 4 divisors (see below), whose sum is σ = 23718110806144. Its totient is φ = 17788583104596.

The previous prime is 20753346955361. The next prime is 20753346955421. The reversal of 20753346955369 is 96355964335702.

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 20753346955369 - 2³ = 20753346955361 is a prime.

It is a super-2 number, since 2×20753346955369² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20753346955361) 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, 1482381925377 + ... + 1482381925390.

It is an arithmetic number, because the mean of its divisors is an integer number (5929527701536).

Almost surely, 2^{20753346955369} is an apocalyptic number.

It is an amenable number.

20753346955369 is a deficient number, since it is larger than the sum of its proper divisors (2964763850775).

20753346955369 is an equidigital number, since it uses as much as digits as its factorization.

20753346955369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2964763850774.

The product of its (nonzero) digits is 551124000, while the sum is 67.

The spelling of 20753346955369 in words is "twenty trillion, seven hundred fifty-three billion, three hundred forty-six million, nine hundred fifty-five thousand, three hundred sixty-nine".