645611241322 has 16 divisors (see below), whose sum is σ = 992359368000. Its totient is φ = 314829905760.

The previous prime is 645611241307. The next prime is 645611241343. The reversal of 645611241322 is 223142116546.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1026072 + ... + 1531027.

It is an arithmetic number, because the mean of its divisors is an integer number (62022460500).

Almost surely, 2^645611241322 is an apocalyptic number.

645611241322 is a deficient number, since it is larger than the sum of its proper divisors (346748126678).

645611241322 is a wasteful number, since it uses less digits than its factorization.

645611241322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2560221.

The product of its digits is 69120, while the sum is 37.

Adding to 645611241322 its reverse (223142116546), we get a palindrome (868753357868).

The spelling of 645611241322 in words is "six hundred forty-five billion, six hundred eleven million, two hundred forty-one thousand, three hundred twenty-two".