640502533153 has 8 divisors (see below), whose sum is σ = 732017236608. Its totient is φ = 548991415104.

The previous prime is 640502533117. The next prime is 640502533159. The reversal of 640502533153 is 351335205046.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 640502533153 - 2¹⁷ = 640502402081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (640502533159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 501976 + ... + 1238137.

It is an arithmetic number, because the mean of its divisors is an integer number (91502154576).

Almost surely, 2^640502533153 is an apocalyptic number.

It is an amenable number.

640502533153 is a deficient number, since it is larger than the sum of its proper divisors (91514703455).

640502533153 is a wasteful number, since it uses less digits than its factorization.

640502533153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1792703.

The product of its (nonzero) digits is 162000, while the sum is 37.

Adding to 640502533153 its reverse (351335205046), we get a palindrome (991837738199).

The spelling of 640502533153 in words is "six hundred forty billion, five hundred two million, five hundred thirty-three thousand, one hundred fifty-three".