20455313441155 has 8 divisors (see below), whose sum is σ = 24633729782784. Its totient is φ = 16306014984000.

The previous prime is 20455313441119. The next prime is 20455313441231. The reversal of 20455313441155 is 55114431355402.

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

It is not a de Polignac number, because 20455313441155 - 2⁷ = 20455313441027 is a prime.

It is a Duffinian 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, 7279469571 + ... + 7279472380.

It is an arithmetic number, because the mean of its divisors is an integer number (3079216222848).

Almost surely, 2^{20455313441155} is an apocalyptic number.

20455313441155 is a deficient number, since it is larger than the sum of its proper divisors (4178416341629).

20455313441155 is a wasteful number, since it uses less digits than its factorization.

20455313441155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14558942237.

The product of its (nonzero) digits is 720000, while the sum is 43.

Adding to 20455313441155 its reverse (55114431355402), we get a palindrome (75569744796557).

The spelling of 20455313441155 in words is "twenty trillion, four hundred fifty-five billion, three hundred thirteen million, four hundred forty-one thousand, one hundred fifty-five".