645415002110 has 16 divisors (see below), whose sum is σ = 1164587468400. Its totient is φ = 257534786496.

The previous prime is 645415002101. The next prime is 645415002187. The reversal of 645415002110 is 11200514546.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78897500 + ... + 78905679.

It is an arithmetic number, because the mean of its divisors is an integer number (72786716775).

Almost surely, 2^645415002110 is an apocalyptic number.

645415002110 is a deficient number, since it is larger than the sum of its proper divisors (519172466290).

645415002110 is a wasteful number, since it uses less digits than its factorization.

645415002110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157803595.

The product of its (nonzero) digits is 4800, while the sum is 29.

Adding to 645415002110 its reverse (11200514546), we get a palindrome (656615516656).

The spelling of 645415002110 in words is "six hundred forty-five billion, four hundred fifteen million, two thousand, one hundred ten".