20023564513263 has 8 divisors (see below), whose sum is σ = 26723981352576. Its totient is φ = 13336095341400.

The previous prime is 20023564513237. The next prime is 20023564513321. The reversal of 20023564513263 is 36231546532002.

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

It is not a de Polignac number, because 20023564513263 - 2⁵ = 20023564513231 is a prime.

It is a super-3 number, since 3×20023564513263³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20023564511263) 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, 3236913253 + ... + 3236919438.

It is an arithmetic number, because the mean of its divisors is an integer number (3340497669072).

Almost surely, 2^{20023564513263} is an apocalyptic number.

20023564513263 is a deficient number, since it is larger than the sum of its proper divisors (6700416839313).

20023564513263 is a wasteful number, since it uses less digits than its factorization.

20023564513263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6473833725.

The product of its (nonzero) digits is 777600, while the sum is 42.

The spelling of 20023564513263 in words is "twenty trillion, twenty-three billion, five hundred sixty-four million, five hundred thirteen thousand, two hundred sixty-three".