20343655355453 has 8 divisors (see below), whose sum is σ = 20602605598848. Its totient is φ = 20085034777984.

The previous prime is 20343655355411. The next prime is 20343655355509. The reversal of 20343655355453 is 35455355634302.

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 20343655355453 - 2²⁶ = 20343588246589 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20343655355395 and 20343655355404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20343651355453) 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, 82292276 + ... + 82539117.

It is an arithmetic number, because the mean of its divisors is an integer number (2575325699856).

Almost surely, 2^{20343655355453} is an apocalyptic number.

It is an amenable number.

20343655355453 is a deficient number, since it is larger than the sum of its proper divisors (258950243395).

20343655355453 is a wasteful number, since it uses less digits than its factorization.

20343655355453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164832963.

The product of its (nonzero) digits is 48600000, while the sum is 53.

The spelling of 20343655355453 in words is "twenty trillion, three hundred forty-three billion, six hundred fifty-five million, three hundred fifty-five thousand, four hundred fifty-three".