455220561317777 has 4 divisors (see below), whose sum is σ = 455585029342500. Its totient is φ = 454856093293056.

The previous prime is 455220561317761. The next prime is 455220561317839. The reversal of 455220561317777 is 777713165022554.

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 117278849975296 + 337941711342481 = 10829536^2 + 18383191^2 .

It is a cyclic number.

It is not a de Polignac number, because 455220561317777 - 2⁴ = 455220561317761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (455220561307777) 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, 182234010488 + ... + 182234012985.

It is an arithmetic number, because the mean of its divisors is an integer number (113896257335625).

Almost surely, 2^{455220561317777} is an apocalyptic number.

It is an amenable number.

455220561317777 is a deficient number, since it is larger than the sum of its proper divisors (364468024723).

455220561317777 is a wasteful number, since it uses less digits than its factorization.

455220561317777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364468024722.

The product of its (nonzero) digits is 86436000, while the sum is 62.

The spelling of 455220561317777 in words is "four hundred fifty-five trillion, two hundred twenty billion, five hundred sixty-one million, three hundred seventeen thousand, seven hundred seventy-seven".