5645355646618 has 16 divisors (see below), whose sum is σ = 8506030619520. Its totient is φ = 2810039142816.

The previous prime is 5645355646591. The next prime is 5645355646687. The reversal of 5645355646618 is 8166465535465.

It is a self number, because there is not a number n which added to its sum of digits gives 5645355646618.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6340896 + ... + 7176187.

It is an arithmetic number, because the mean of its divisors is an integer number (531626913720).

Almost surely, 2^{5645355646618} is an apocalyptic number.

5645355646618 is a deficient number, since it is larger than the sum of its proper divisors (2860674972902).

5645355646618 is a wasteful number, since it uses less digits than its factorization.

5645355646618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13518021.

The product of its digits is 311040000, while the sum is 64.

The spelling of 5645355646618 in words is "five trillion, six hundred forty-five billion, three hundred fifty-five million, six hundred forty-six thousand, six hundred eighteen".