645311345616301 has 32 divisors (see below), whose sum is σ = 794614331750400. Its totient is φ = 510328572626880.

The previous prime is 645311345616283. The next prime is 645311345616317. The reversal of 645311345616301 is 103616543113546.

It is not a de Polignac number, because 645311345616301 - 2⁵ = 645311345616269 is a prime.

It is a super-2 number, since 2×645311345616301² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (645311345614301) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1829876370 + ... + 1830228988.

It is an arithmetic number, because the mean of its divisors is an integer number (24831697867200).

Almost surely, 2^{645311345616301} is an apocalyptic number.

It is an amenable number.

645311345616301 is a deficient number, since it is larger than the sum of its proper divisors (149302986134099).

645311345616301 is a wasteful number, since it uses less digits than its factorization.

645311345616301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362329.

The product of its (nonzero) digits is 2332800, while the sum is 49.

Adding to 645311345616301 its reverse (103616543113546), we get a palindrome (748927888729847).

The spelling of 645311345616301 in words is "six hundred forty-five trillion, three hundred eleven billion, three hundred forty-five million, six hundred sixteen thousand, three hundred one".