20013653450401 has 8 divisors (see below), whose sum is σ = 21553314911744. Its totient is φ = 18474013368720.

The previous prime is 20013653450333. The next prime is 20013653450423. The reversal of 20013653450401 is 10405435631002.

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

It is not a de Polignac number, because 20013653450401 - 2¹⁷ = 20013653319329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20013653450491) 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, 3373761 + ... + 7170046.

It is an arithmetic number, because the mean of its divisors is an integer number (2694164363968).

Almost surely, 2^{20013653450401} is an apocalyptic number.

It is an amenable number.

20013653450401 is a deficient number, since it is larger than the sum of its proper divisors (1539661461343).

20013653450401 is a wasteful number, since it uses less digits than its factorization.

20013653450401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10689831.

The product of its (nonzero) digits is 43200, while the sum is 34.

The spelling of 20013653450401 in words is "twenty trillion, thirteen billion, six hundred fifty-three million, four hundred fifty thousand, four hundred one".