645210352565030 has 128 divisors (see below), whose sum is σ = 1388319883591680. Its totient is φ = 211223695818240.

The previous prime is 645210352564997. The next prime is 645210352565083. The reversal of 645210352565030 is 30565253012546.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 76155344 + ... + 84202476.

It is an arithmetic number, because the mean of its divisors is an integer number (10846249090560).

Almost surely, 2^{645210352565030} is an apocalyptic number.

645210352565030 is an abundant number, since it is smaller than the sum of its proper divisors (743109531026650).

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

645210352565030 is a wasteful number, since it uses less digits than its factorization.

645210352565030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8047614.

The product of its (nonzero) digits is 3240000, while the sum is 47.

The spelling of 645210352565030 in words is "six hundred forty-five trillion, two hundred ten billion, three hundred fifty-two million, five hundred sixty-five thousand, thirty".