640436064301 has 32 divisors (see below), whose sum is σ = 744537830400. Its totient is φ = 544768519680.

The previous prime is 640436064277. The next prime is 640436064329. The reversal of 640436064301 is 103460634046.

640436064301 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 640436064301 - 2¹³ = 640436056109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (640436064901) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8119485 + ... + 8197981.

It is an arithmetic number, because the mean of its divisors is an integer number (23266807200).

Almost surely, 2^640436064301 is an apocalyptic number.

It is an amenable number.

640436064301 is a deficient number, since it is larger than the sum of its proper divisors (104101766099).

640436064301 is a wasteful number, since it uses less digits than its factorization.

640436064301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79009.

The product of its (nonzero) digits is 124416, while the sum is 37.

Adding to 640436064301 its reverse (103460634046), we get a palindrome (743896698347).

The spelling of 640436064301 in words is "six hundred forty billion, four hundred thirty-six million, sixty-four thousand, three hundred one".