5645223546 has 16 divisors (see below), whose sum is σ = 11781336384. Its totient is φ = 1799926304.

The previous prime is 5645223511. The next prime is 5645223553. The reversal of 5645223546 is 6453225465.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 5645223498 and 5645223507.

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, 20453571 + ... + 20453846.

It is an arithmetic number, because the mean of its divisors is an integer number (736333524).

Almost surely, 2^5645223546 is an apocalyptic number.

5645223546 is an abundant number, since it is smaller than the sum of its proper divisors (6136112838).

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

5645223546 is a wasteful number, since it uses less digits than its factorization.

5645223546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40907445.

The product of its digits is 864000, while the sum is 42.

The square root of 5645223546 is about 75134.7026745964. The cubic root of 5645223546 is about 1780.5754510690.

The spelling of 5645223546 in words is "five billion, six hundred forty-five million, two hundred twenty-three thousand, five hundred forty-six".