645246613432341 has 12 divisors (see below), whose sum is σ = 932560695027468. Its totient is φ = 429916189435584.

The previous prime is 645246613432331. The next prime is 645246613432349. The reversal of 645246613432341 is 143234316642546.

645246613432341 is a `hidden beast` number, since 6 + 4 + 5 + 2 + 4 + 6 + 61 + 343 + 234 + 1 = 666.

645246613432341 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 179901728435025 + 465344884997316 = 13412745^2 + 21571854^2 .

It is not a de Polignac number, because 645246613432341 - 2³⁰ = 645245539690517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (645246613432349) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20684943480 + ... + 20684974673.

It is an arithmetic number, because the mean of its divisors is an integer number (77713391252289).

Almost surely, 2^{645246613432341} is an apocalyptic number.

It is an amenable number.

645246613432341 is a deficient number, since it is larger than the sum of its proper divisors (287314081595127).

645246613432341 is a wasteful number, since it uses less digits than its factorization.

645246613432341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41369919892 (or 41369919889 counting only the distinct ones).

The product of its digits is 29859840, while the sum is 54.

The spelling of 645246613432341 in words is "six hundred forty-five trillion, two hundred forty-six billion, six hundred thirteen million, four hundred thirty-two thousand, three hundred forty-one".