640022363135 has 8 divisors (see below), whose sum is σ = 771323089680. Its totient is φ = 509820387904.

The previous prime is 640022363131. The next prime is 640022363213. The reversal of 640022363135 is 531363220046.

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 640022363135 - 2² = 640022363131 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 640022363095 and 640022363104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (640022363131) 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, 274686545 + ... + 274688874.

It is an arithmetic number, because the mean of its divisors is an integer number (96415386210).

Almost surely, 2^640022363135 is an apocalyptic number.

640022363135 is a deficient number, since it is larger than the sum of its proper divisors (131300726545).

640022363135 is a wasteful number, since it uses less digits than its factorization.

640022363135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549375657.

The product of its (nonzero) digits is 77760, while the sum is 35.

The spelling of 640022363135 in words is "six hundred forty billion, twenty-two million, three hundred sixty-three thousand, one hundred thirty-five".