645332004325 has 12 divisors (see below), whose sum is σ = 800760196480. Its totient is φ = 515911725360.

The previous prime is 645332004281. The next prime is 645332004341. The reversal of 645332004325 is 523400233546.

It is not a de Polignac number, because 645332004325 - 2¹¹ = 645332002277 is a prime.

It is a super-2 number, since 2×645332004325² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 8809749 + ... + 8882698.

Almost surely, 2^645332004325 is an apocalyptic number.

It is an amenable number.

645332004325 is a deficient number, since it is larger than the sum of its proper divisors (155428192155).

645332004325 is a wasteful number, since it uses less digits than its factorization.

645332004325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17693916 (or 17693911 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 37.

The spelling of 645332004325 in words is "six hundred forty-five billion, three hundred thirty-two million, four thousand, three hundred twenty-five".