20365144363753 has 24 divisors (see below), whose sum is σ = 23728259942208. Its totient is φ = 17427709476576.

The previous prime is 20365144363747. The next prime is 20365144363873. The reversal of 20365144363753 is 35736344156302.

It is not a de Polignac number, because 20365144363753 - 2⁹ = 20365144363241 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20365144363753.

It is not an unprimeable number, because it can be changed into a prime (20365144313753) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 121236100 + ... + 121403962.

It is an arithmetic number, because the mean of its divisors is an integer number (988677497592).

Almost surely, 2^{20365144363753} is an apocalyptic number.

It is an amenable number.

20365144363753 is a deficient number, since it is larger than the sum of its proper divisors (3363115578455).

20365144363753 is a wasteful number, since it uses less digits than its factorization.

20365144363753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171853 (or 171846 counting only the distinct ones).

The product of its (nonzero) digits is 16329600, while the sum is 52.

The spelling of 20365144363753 in words is "twenty trillion, three hundred sixty-five billion, one hundred forty-four million, three hundred sixty-three thousand, seven hundred fifty-three".