322504660645 has 4 divisors (see below), whose sum is σ = 387005592780. Its totient is φ = 258003728512.

The previous prime is 322504660637. The next prime is 322504660663. The reversal of 322504660645 is 546066405223.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 546066405223 = 19 ⋅28740337117.

It can be written as a sum of positive squares in 2 ways, for example, as 244686536964 + 77818123681 = 494658^2 + 278959^2 .

It is a cyclic number.

It is not a de Polignac number, because 322504660645 - 2³ = 322504660637 is a prime.

It is a super-2 number, since 2×322504660645² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 32250466060 + ... + 32250466069.

It is an arithmetic number, because the mean of its divisors is an integer number (96751398195).

Almost surely, 2^322504660645 is an apocalyptic number.

It is an amenable number.

322504660645 is a deficient number, since it is larger than the sum of its proper divisors (64500932135).

322504660645 is an equidigital number, since it uses as much as digits as its factorization.

322504660645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64500932134.

The product of its (nonzero) digits is 1036800, while the sum is 43.

The spelling of 322504660645 in words is "three hundred twenty-two billion, five hundred four million, six hundred sixty thousand, six hundred forty-five".