645325463022 has 16 divisors (see below), whose sum is σ = 1291511952000. Its totient is φ = 214964983352.

The previous prime is 645325463009. The next prime is 645325463023. The reversal of 645325463022 is 220364523546.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (645325463023) 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, 35866338 + ... + 35884325.

It is an arithmetic number, because the mean of its divisors is an integer number (80719497000).

Almost surely, 2^645325463022 is an apocalyptic number.

645325463022 is an abundant number, since it is smaller than the sum of its proper divisors (646186488978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

645325463022 is a wasteful number, since it uses less digits than its factorization.

645325463022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71752167.

The product of its (nonzero) digits is 1036800, while the sum is 42.

Adding to 645325463022 its reverse (220364523546), we get a palindrome (865689986568).

The spelling of 645325463022 in words is "six hundred forty-five billion, three hundred twenty-five million, four hundred sixty-three thousand, twenty-two".