320485458061 has 4 divisors (see below), whose sum is σ = 324999337824. Its totient is φ = 315971578300.

The previous prime is 320485458037. The next prime is 320485458089. The reversal of 320485458061 is 160854584023.

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 320485458061 - 2⁷ = 320485457933 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 (320485458031) 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, 2256939775 + ... + 2256939916.

It is an arithmetic number, because the mean of its divisors is an integer number (81249834456).

Almost surely, 2^320485458061 is an apocalyptic number.

It is an amenable number.

320485458061 is a deficient number, since it is larger than the sum of its proper divisors (4513879763).

320485458061 is an equidigital number, since it uses as much as digits as its factorization.

320485458061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4513879762.

The product of its (nonzero) digits is 921600, while the sum is 46.

The spelling of 320485458061 in words is "three hundred twenty billion, four hundred eighty-five million, four hundred fifty-eight thousand, sixty-one".