5645340620 has 24 divisors (see below), whose sum is σ = 12552581664. Its totient is φ = 2125304576.

The previous prime is 5645340619. The next prime is 5645340641. The reversal of 5645340620 is 260435465.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8301632 + ... + 8302311.

It is an arithmetic number, because the mean of its divisors is an integer number (523024236).

Almost surely, 2^5645340620 is an apocalyptic number.

It is an amenable number.

5645340620 is an abundant number, since it is smaller than the sum of its proper divisors (6907241044).

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

5645340620 is a wasteful number, since it uses less digits than its factorization.

5645340620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16603969 (or 16603967 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 35.

The square root of 5645340620 is about 75135.4817646097. The cubic root of 5645340620 is about 1780.5877598611.

The spelling of 5645340620 in words is "five billion, six hundred forty-five million, three hundred forty thousand, six hundred twenty".