320218547045 has 16 divisors (see below), whose sum is σ = 385686548352. Its totient is φ = 255225823680.

The previous prime is 320218547039. The next prime is 320218547053. The reversal of 320218547045 is 540745812023.

It is not a de Polignac number, because 320218547045 - 2¹² = 320218542949 is a prime.

It is a super-2 number, since 2×320218547045² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320218546993 and 320218547011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5277530 + ... + 5337860.

It is an arithmetic number, because the mean of its divisors is an integer number (24105409272).

Almost surely, 2^320218547045 is an apocalyptic number.

It is an amenable number.

320218547045 is a deficient number, since it is larger than the sum of its proper divisors (65468001307).

320218547045 is a wasteful number, since it uses less digits than its factorization.

320218547045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64252.

The product of its (nonzero) digits is 268800, while the sum is 41.

The spelling of 320218547045 in words is "three hundred twenty billion, two hundred eighteen million, five hundred forty-seven thousand, forty-five".