645624110041 has 8 divisors (see below), whose sum is σ = 660663045504. Its totient is φ = 630586284720.

The previous prime is 645624110003. The next prime is 645624110069. The reversal of 645624110041 is 140011426546.

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 645624110041 - 2¹³ = 645624101849 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 645624109979 and 645624110006.

It is not an unprimeable number, because it can be changed into a prime (645624110741) 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 7 ways as a sum of consecutive naturals, for example, 962976 + ... + 1489486.

It is an arithmetic number, because the mean of its divisors is an integer number (82582880688).

Almost surely, 2^645624110041 is an apocalyptic number.

It is an amenable number.

645624110041 is a deficient number, since it is larger than the sum of its proper divisors (15038935463).

645624110041 is a wasteful number, since it uses less digits than its factorization.

645624110041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555071.

The product of its (nonzero) digits is 23040, while the sum is 34.

Adding to 645624110041 its reverse (140011426546), we get a palindrome (785635536587).

The spelling of 645624110041 in words is "six hundred forty-five billion, six hundred twenty-four million, one hundred ten thousand, forty-one".