645303143102 has 16 divisors (see below), whose sum is σ = 968485729680. Its totient is φ = 322474622592.

The previous prime is 645303143071. The next prime is 645303143117. The reversal of 645303143102 is 201341303546.

645303143102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×645303143102² (a number of 24 digits) contains 22 as substring.

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, 32298788 + ... + 32318760.

It is an arithmetic number, because the mean of its divisors is an integer number (60530358105).

Almost surely, 2^645303143102 is an apocalyptic number.

645303143102 is a deficient number, since it is larger than the sum of its proper divisors (323182586578).

645303143102 is a wasteful number, since it uses less digits than its factorization.

645303143102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28027.

The product of its (nonzero) digits is 25920, while the sum is 32.

Adding to 645303143102 its reverse (201341303546), we get a palindrome (846644446648).

The spelling of 645303143102 in words is "six hundred forty-five billion, three hundred three million, one hundred forty-three thousand, one hundred two".