320055646336253 has 4 divisors (see below), whose sum is σ = 326865340939200. Its totient is φ = 313245951733308.

The previous prime is 320055646336249. The next prime is 320055646336267. The reversal of 320055646336253 is 352633646550023.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 320055646336253 - 2² = 320055646336249 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320055646336195 and 320055646336204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320055646236253) 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, 3404847301403 + ... + 3404847301496.

It is an arithmetic number, because the mean of its divisors is an integer number (81716335234800).

Almost surely, 2^{320055646336253} is an apocalyptic number.

It is an amenable number.

320055646336253 is a deficient number, since it is larger than the sum of its proper divisors (6809694602947).

320055646336253 is an equidigital number, since it uses as much as digits as its factorization.

320055646336253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6809694602946.

The product of its (nonzero) digits is 34992000, while the sum is 53.

The spelling of 320055646336253 in words is "three hundred twenty trillion, fifty-five billion, six hundred forty-six million, three hundred thirty-six thousand, two hundred fifty-three".