320336546465 has 32 divisors (see below), whose sum is σ = 436618425600. Its totient is φ = 223665166080.

The previous prime is 320336546449. The next prime is 320336546513. The reversal of 320336546465 is 564645633023.

It is not a de Polignac number, because 320336546465 - 2⁴ = 320336546449 is a prime.

It is a super-2 number, since 2×320336546465² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 373820 + ... + 883410.

It is an arithmetic number, because the mean of its divisors is an integer number (13644325800).

Almost surely, 2^320336546465 is an apocalyptic number.

It is an amenable number.

320336546465 is a deficient number, since it is larger than the sum of its proper divisors (116281879135).

320336546465 is a wasteful number, since it uses less digits than its factorization.

320336546465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510137.

The product of its (nonzero) digits is 4665600, while the sum is 47.

The spelling of 320336546465 in words is "three hundred twenty billion, three hundred thirty-six million, five hundred forty-six thousand, four hundred sixty-five".