320450302452261 has 16 divisors (see below), whose sum is σ = 437688778500288. Its totient is φ = 208422694032000.

The previous prime is 320450302452257. The next prime is 320450302452307. The reversal of 320450302452261 is 162254203054023.

It is not a de Polignac number, because 320450302452261 - 2² = 320450302452257 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320450302452361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152306286 + ... + 154395936.

It is an arithmetic number, because the mean of its divisors is an integer number (27355548656268).

Almost surely, 2^{320450302452261} is an apocalyptic number.

It is an amenable number.

320450302452261 is a deficient number, since it is larger than the sum of its proper divisors (117238476048027).

320450302452261 is a wasteful number, since it uses less digits than its factorization.

320450302452261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3336452.

The product of its (nonzero) digits is 345600, while the sum is 39.

The spelling of 320450302452261 in words is "three hundred twenty trillion, four hundred fifty billion, three hundred two million, four hundred fifty-two thousand, two hundred sixty-one".