320655432045 has 32 divisors (see below), whose sum is σ = 560082684672. Its totient is φ = 155698647552.

The previous prime is 320655432007. The next prime is 320655432049. The reversal of 320655432045 is 540234556023.

It is not a de Polignac number, because 320655432045 - 2²² = 320651237741 is a prime.

It is a super-2 number, since 2×320655432045² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 320655431994 and 320655432012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320655432049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11248689 + ... + 11277158.

It is an arithmetic number, because the mean of its divisors is an integer number (17502583896).

Almost surely, 2^320655432045 is an apocalyptic number.

It is an amenable number.

320655432045 is a deficient number, since it is larger than the sum of its proper divisors (239427252627).

320655432045 is a wasteful number, since it uses less digits than its factorization.

320655432045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22525941.

The product of its (nonzero) digits is 432000, while the sum is 39.

Adding to 320655432045 its reverse (540234556023), we get a palindrome (860889988068).

The spelling of 320655432045 in words is "three hundred twenty billion, six hundred fifty-five million, four hundred thirty-two thousand, forty-five".