20145414111455 has 8 divisors (see below), whose sum is σ = 24174553682112. Its totient is φ = 16116293456928.

The previous prime is 20145414111439. The next prime is 20145414111467. The reversal of 20145414111455 is 55411141454102.

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

It is a cyclic number.

It is not a de Polignac number, because 20145414111455 - 2⁴ = 20145414111439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2269799 + ... + 6741128.

It is an arithmetic number, because the mean of its divisors is an integer number (3021819210264).

Almost surely, 2^{20145414111455} is an apocalyptic number.

20145414111455 is a deficient number, since it is larger than the sum of its proper divisors (4029139570657).

20145414111455 is an equidigital number, since it uses as much as digits as its factorization.

20145414111455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9458065.

The product of its (nonzero) digits is 64000, while the sum is 38.

Adding to 20145414111455 its reverse (55411141454102), we get a palindrome (75556555565557).

The spelling of 20145414111455 in words is "twenty trillion, one hundred forty-five billion, four hundred fourteen million, one hundred eleven thousand, four hundred fifty-five".