645245525060 has 24 divisors (see below), whose sum is σ = 1355136510336. Its totient is φ = 258075180000.

The previous prime is 645245525059. The next prime is 645245525063. The reversal of 645245525060 is 60525542546.

It is not an unprimeable number, because it can be changed into a prime (645245525063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1208732 + ... + 1658771.

It is an arithmetic number, because the mean of its divisors is an integer number (56464021264).

Almost surely, 2^645245525060 is an apocalyptic number.

It is an amenable number.

645245525060 is an abundant number, since it is smaller than the sum of its proper divisors (709890985276).

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

645245525060 is a wasteful number, since it uses less digits than its factorization.

645245525060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2878763 (or 2878761 counting only the distinct ones).

The product of its (nonzero) digits is 1440000, while the sum is 44.

The spelling of 645245525060 in words is "six hundred forty-five billion, two hundred forty-five million, five hundred twenty-five thousand, sixty".