645301335306 has 32 divisors (see below), whose sum is σ = 1366381938240. Its totient is φ = 202601447424.

The previous prime is 645301335247. The next prime is 645301335311. The reversal of 645301335306 is 603533103546.

It is a super-2 number, since 2×645301335306² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16340215 + ... + 16379658.

It is an arithmetic number, because the mean of its divisors is an integer number (42699435570).

Almost surely, 2^645301335306 is an apocalyptic number.

645301335306 is an abundant number, since it is smaller than the sum of its proper divisors (721080602934).

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

645301335306 is a wasteful number, since it uses less digits than its factorization.

645301335306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32720070.

The product of its (nonzero) digits is 291600, while the sum is 39.

The spelling of 645301335306 in words is "six hundred forty-five billion, three hundred one million, three hundred thirty-five thousand, three hundred six".