645415005202 has 8 divisors (see below), whose sum is σ = 1056133644912. Its totient is φ = 293370456900.

The previous prime is 645415005173. The next prime is 645415005211. The reversal of 645415005202 is 202500514546.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 14668522824 + ... + 14668522867.

It is an arithmetic number, because the mean of its divisors is an integer number (132016705614).

Almost surely, 2^645415005202 is an apocalyptic number.

645415005202 is a deficient number, since it is larger than the sum of its proper divisors (410718639710).

645415005202 is a wasteful number, since it uses less digits than its factorization.

645415005202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29337045704.

The product of its (nonzero) digits is 48000, while the sum is 34.

Adding to 645415005202 its reverse (202500514546), we get a palindrome (847915519748).

The spelling of 645415005202 in words is "six hundred forty-five billion, four hundred fifteen million, five thousand, two hundred two".