5640330465 has 144 divisors (see below), whose sum is σ = 13137396480. Its totient is φ = 2205987840.

The previous prime is 5640330419. The next prime is 5640330469.

5640330465 is a `hidden beast` number, since 5 + 640 + 3 + 3 + 0 + 4 + 6 + 5 = 666.

5640330465 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 5640330465 - 2⁶ = 5640330401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5640330469) 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 143 ways as a sum of consecutive naturals, for example, 405496 + ... + 419174.

It is an arithmetic number, because the mean of its divisors is an integer number (91231920).

Almost surely, 2^5640330465 is an apocalyptic number.

5640330465 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5640330465 is an abundant number, since it is smaller than the sum of its proper divisors (7497066015).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5640330465 is a wasteful number, since it uses less digits than its factorization.

5640330465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13732 (or 13722 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

The square root of 5640330465 is about 75102.1335582419. The cubic root of 5640330465 is about 1780.0608556604.

It can be divided in two parts, 56403 and 30465, that added together give a palindrome (86868).

The spelling of 5640330465 in words is "five billion, six hundred forty million, three hundred thirty thousand, four hundred sixty-five".