640013571201 has 32 divisors (see below), whose sum is σ = 890740940800. Its totient is φ = 408314649600.

The previous prime is 640013571199. The next prime is 640013571217. The reversal of 640013571201 is 102175310046.

It is not a de Polignac number, because 640013571201 - 2¹ = 640013571199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (640013571401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2910561 + ... + 3122721.

It is an arithmetic number, because the mean of its divisors is an integer number (27835654400).

Almost surely, 2^640013571201 is an apocalyptic number.

It is an amenable number.

640013571201 is a deficient number, since it is larger than the sum of its proper divisors (250727369599).

640013571201 is a wasteful number, since it uses less digits than its factorization.

640013571201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212557.

The product of its (nonzero) digits is 5040, while the sum is 30.

Adding to 640013571201 its reverse (102175310046), we get a palindrome (742188881247).

The spelling of 640013571201 in words is "six hundred forty billion, thirteen million, five hundred seventy-one thousand, two hundred one".