320231165240545 has 32 divisors (see below), whose sum is σ = 415840392009504. Its totient is φ = 235335067545600.

The previous prime is 320231165240521. The next prime is 320231165240551. The reversal of 320231165240545 is 545042561132023.

It can be written as a sum of positive squares in 16 ways, for example, as 233305422289 + 319997859818256 = 483017^2 + 17888484^2 .

It is not a de Polignac number, because 320231165240545 - 2¹¹ = 320231165238497 is a prime.

It is a Duffinian 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, 15726675 + ... + 29795815.

It is an arithmetic number, because the mean of its divisors is an integer number (12995012250297).

Almost surely, 2^{320231165240545} is an apocalyptic number.

It is an amenable number.

320231165240545 is a deficient number, since it is larger than the sum of its proper divisors (95609226768959).

320231165240545 is a wasteful number, since it uses less digits than its factorization.

320231165240545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14070853.

The product of its (nonzero) digits is 864000, while the sum is 43.

The spelling of 320231165240545 in words is "three hundred twenty trillion, two hundred thirty-one billion, one hundred sixty-five million, two hundred forty thousand, five hundred forty-five".