320544225505455 has 32 divisors (see below), whose sum is σ = 586209328934400. Its totient is φ = 146516673942912.

The previous prime is 320544225505397. The next prime is 320544225505463. The reversal of 320544225505455 is 554505522445023.

It is a happy number.

It is not a de Polignac number, because 320544225505455 - 2⁶ = 320544225505391 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 320544225505398 and 320544225505407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 184853160 + ... + 186579149.

It is an arithmetic number, because the mean of its divisors is an integer number (18319041529200).

Almost surely, 2^{320544225505455} is an apocalyptic number.

320544225505455 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

320544225505455 is a deficient number, since it is larger than the sum of its proper divisors (265665103428945).

320544225505455 is a wasteful number, since it uses less digits than its factorization.

320544225505455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371440543.

The product of its (nonzero) digits is 24000000, while the sum is 51.

The spelling of 320544225505455 in words is "three hundred twenty trillion, five hundred forty-four billion, two hundred twenty-five million, five hundred five thousand, four hundred fifty-five".