20003348858573 has 4 divisors (see below), whose sum is σ = 20003424034140. Its totient is φ = 20003273683008.

The previous prime is 20003348858503. The next prime is 20003348858593. The reversal of 20003348858573 is 37585884330002.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9596872885924 + 10406475972649 = 3097882^2 + 3225907^2 .

It is a cyclic number.

It is not a de Polignac number, because 20003348858573 - 2²⁶ = 20003281749709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20003348858503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37187228 + ... + 37721301.

It is an arithmetic number, because the mean of its divisors is an integer number (5000856008535).

Almost surely, 2^{20003348858573} is an apocalyptic number.

It is an amenable number.

20003348858573 is a deficient number, since it is larger than the sum of its proper divisors (75175567).

20003348858573 is an equidigital number, since it uses as much as digits as its factorization.

20003348858573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75175566.

The product of its (nonzero) digits is 19353600, while the sum is 56.

The spelling of 20003348858573 in words is "twenty trillion, three billion, three hundred forty-eight million, eight hundred fifty-eight thousand, five hundred seventy-three".