640006361302 has 32 divisors (see below), whose sum is σ = 1200053157120. Its totient is φ = 248695181280.

The previous prime is 640006361297. The next prime is 640006361311. The reversal of 640006361302 is 203163600046.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5424333 + ... + 5541064.

It is an arithmetic number, because the mean of its divisors is an integer number (37501661160).

Almost surely, 2^640006361302 is an apocalyptic number.

640006361302 is a deficient number, since it is larger than the sum of its proper divisors (560046795818).

640006361302 is a wasteful number, since it uses less digits than its factorization.

640006361302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10965796.

The product of its (nonzero) digits is 15552, while the sum is 31.

Adding to 640006361302 its reverse (203163600046), we get a palindrome (843169961348).

The spelling of 640006361302 in words is "six hundred forty billion, six million, three hundred sixty-one thousand, three hundred two".