320561217703463 has 32 divisors (see below), whose sum is σ = 351484949237760. Its totient is φ = 289937714112000.

The previous prime is 320561217703459. The next prime is 320561217703469. The reversal of 320561217703463 is 364307712165023.

It is a cyclic number.

It is not a de Polignac number, because 320561217703463 - 2² = 320561217703459 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 (320561217703469) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7486053593 + ... + 7486096413.

It is an arithmetic number, because the mean of its divisors is an integer number (10983904663680).

Almost surely, 2^{320561217703463} is an apocalyptic number.

320561217703463 is a deficient number, since it is larger than the sum of its proper divisors (30923731534297).

320561217703463 is a wasteful number, since it uses less digits than its factorization.

320561217703463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46559.

The product of its (nonzero) digits is 3810240, while the sum is 50.

Adding to 320561217703463 its reverse (364307712165023), we get a palindrome (684868929868486).

The spelling of 320561217703463 in words is "three hundred twenty trillion, five hundred sixty-one billion, two hundred seventeen million, seven hundred three thousand, four hundred sixty-three".