5645020345 has 16 divisors (see below), whose sum is σ = 6891257088. Its totient is φ = 4438177920.

The previous prime is 5645020321. The next prime is 5645020363. The reversal of 5645020345 is 5430205465.

5645020345 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 5645020345 - 2¹⁷ = 5644889273 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5645020345.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124837 + ... + 163933.

It is an arithmetic number, because the mean of its divisors is an integer number (430703568).

Almost surely, 2^5645020345 is an apocalyptic number.

It is an amenable number.

5645020345 is a deficient number, since it is larger than the sum of its proper divisors (1246236743).

5645020345 is a wasteful number, since it uses less digits than its factorization.

5645020345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39600.

The product of its (nonzero) digits is 72000, while the sum is 34.

The square root of 5645020345 is about 75133.3504177739. The cubic root of 5645020345 is about 1780.5540867509.

The spelling of 5645020345 in words is "five billion, six hundred forty-five million, twenty thousand, three hundred forty-five".