645236365141 has 8 divisors (see below), whose sum is σ = 655440756480. Its totient is φ = 635068880352.

The previous prime is 645236365073. The next prime is 645236365231. The reversal of 645236365141 is 141563632546.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 645236365141 - 2¹³ = 645236356949 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 645236365091 and 645236365100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (645236365841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9191395 + ... + 9261328.

It is an arithmetic number, because the mean of its divisors is an integer number (81930094560).

Almost surely, 2^645236365141 is an apocalyptic number.

It is an amenable number.

645236365141 is a deficient number, since it is larger than the sum of its proper divisors (10204391339).

645236365141 is a wasteful number, since it uses less digits than its factorization.

645236365141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18453275.

The product of its digits is 1555200, while the sum is 46.

Adding to 645236365141 its reverse (141563632546), we get a palindrome (786799997687).

The spelling of 645236365141 in words is "six hundred forty-five billion, two hundred thirty-six million, three hundred sixty-five thousand, one hundred forty-one".