20018295304395 has 48 divisors (see below), whose sum is σ = 34517329090560. Its totient is φ = 9879285745728.

The previous prime is 20018295304379. The next prime is 20018295304409. The reversal of 20018295304395 is 59340359281002.

It is a happy number.

It is not a de Polignac number, because 20018295304395 - 2⁴ = 20018295304379 is a prime.

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 47 ways as a sum of consecutive naturals, for example, 18466987 + ... + 19520916.

It is an arithmetic number, because the mean of its divisors is an integer number (719111022720).

Almost surely, 2^{20018295304395} is an apocalyptic number.

20018295304395 is a deficient number, since it is larger than the sum of its proper divisors (14499033786165).

20018295304395 is a wasteful number, since it uses less digits than its factorization.

20018295304395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37988016 (or 37987973 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 51.

The spelling of 20018295304395 in words is "twenty trillion, eighteen billion, two hundred ninety-five million, three hundred four thousand, three hundred ninety-five".