645700304211 has 16 divisors (see below), whose sum is σ = 862621267200. Its totient is φ = 429623314848.

The previous prime is 645700304189. The next prime is 645700304237. The reversal of 645700304211 is 112403007546.

It is not a de Polignac number, because 645700304211 - 2¹⁵ = 645700271443 is a prime.

It is a super-3 number, since 3×645700304211³ (a number of 36 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (645700304111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15139905 + ... + 15182493.

It is an arithmetic number, because the mean of its divisors is an integer number (53913829200).

Almost surely, 2^645700304211 is an apocalyptic number.

645700304211 is a deficient number, since it is larger than the sum of its proper divisors (216920962989).

645700304211 is a wasteful number, since it uses less digits than its factorization.

645700304211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52378.

The product of its (nonzero) digits is 20160, while the sum is 33.

The spelling of 645700304211 in words is "six hundred forty-five billion, seven hundred million, three hundred four thousand, two hundred eleven".