20230563665634 has 32 divisors (see below), whose sum is σ = 48961364167296. Its totient is φ = 5440151573760.

The previous prime is 20230563665629. The next prime is 20230563665659. The reversal of 20230563665634 is 43656636503202.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a Curzon number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 14167060677 + ... + 14167062104.

It is an arithmetic number, because the mean of its divisors is an integer number (1530042630228).

Almost surely, 2^{20230563665634} is an apocalyptic number.

20230563665634 is an abundant number, since it is smaller than the sum of its proper divisors (28730800501662).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20230563665634 is a wasteful number, since it uses less digits than its factorization.

20230563665634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28334122810.

The product of its (nonzero) digits is 13996800, while the sum is 51.

The spelling of 20230563665634 in words is "twenty trillion, two hundred thirty billion, five hundred sixty-three million, six hundred sixty-five thousand, six hundred thirty-four".