640310164301 has 4 divisors (see below), whose sum is σ = 646294371552. Its totient is φ = 634325957052.

The previous prime is 640310164283. The next prime is 640310164309. The reversal of 640310164301 is 103461013046.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 103461013046 = 2 ⋅51730506523.

It is a cyclic number.

It is not a de Polignac number, because 640310164301 - 2¹⁸ = 640309902157 is a prime.

It is a super-2 number, since 2×640310164301² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (640310164309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2992103465 + ... + 2992103678.

It is an arithmetic number, because the mean of its divisors is an integer number (161573592888).

Almost surely, 2^640310164301 is an apocalyptic number.

It is an amenable number.

640310164301 is a deficient number, since it is larger than the sum of its proper divisors (5984207251).

640310164301 is a wasteful number, since it uses less digits than its factorization.

640310164301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5984207250.

The product of its (nonzero) digits is 5184, while the sum is 29.

Adding to 640310164301 its reverse (103461013046), we get a palindrome (743771177347).

The spelling of 640310164301 in words is "six hundred forty billion, three hundred ten million, one hundred sixty-four thousand, three hundred one".