320061456263253 has 4 divisors (see below), whose sum is σ = 426748608351008. Its totient is φ = 213374304175500.

The previous prime is 320061456263243. The next prime is 320061456263273. The reversal of 320061456263253 is 352362654160023.

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 not a de Polignac number, because 320061456263253 - 2¹³ = 320061456255061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320061456263243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53343576043873 + ... + 53343576043878.

It is an arithmetic number, because the mean of its divisors is an integer number (106687152087752).

Almost surely, 2^{320061456263253} is an apocalyptic number.

It is an amenable number.

320061456263253 is a deficient number, since it is larger than the sum of its proper divisors (106687152087755).

320061456263253 is a wasteful number, since it uses less digits than its factorization.

320061456263253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106687152087754.

The product of its (nonzero) digits is 4665600, while the sum is 48.

The spelling of 320061456263253 in words is "three hundred twenty trillion, sixty-one billion, four hundred fifty-six million, two hundred sixty-three thousand, two hundred fifty-three".