20343165521253 has 8 divisors (see below), whose sum is σ = 27125848768416. Its totient is φ = 13561296310800.

The previous prime is 20343165521183. The next prime is 20343165521369. The reversal of 20343165521253 is 35212556134302.

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

It is not a de Polignac number, because 20343165521253 - 2¹⁰ = 20343165520229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20343165521153) 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, 203450863 + ... + 203550828.

It is an arithmetic number, because the mean of its divisors is an integer number (3390731096052).

Almost surely, 2^{20343165521253} is an apocalyptic number.

It is an amenable number.

20343165521253 is a deficient number, since it is larger than the sum of its proper divisors (6782683247163).

20343165521253 is a wasteful number, since it uses less digits than its factorization.

20343165521253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407018355.

The product of its (nonzero) digits is 648000, while the sum is 42.

The spelling of 20343165521253 in words is "twenty trillion, three hundred forty-three billion, one hundred sixty-five million, five hundred twenty-one thousand, two hundred fifty-three".