66360224845 has 8 divisors (see below), whose sum is σ = 79830856440. Its totient is φ = 52955788800.

The previous prime is 66360224831. The next prime is 66360224891. The reversal of 66360224845 is 54842206366.

It can be written as a sum of positive squares in 4 ways, for example, as 46373899716 + 19986325129 = 215346^2 + 141373^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-66360224845 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66360224795 and 66360224804.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16546680 + ... + 16550689.

It is an arithmetic number, because the mean of its divisors is an integer number (9978857055).

Almost surely, 2^66360224845 is an apocalyptic number.

It is an amenable number.

66360224845 is a deficient number, since it is larger than the sum of its proper divisors (13470631595).

66360224845 is a wasteful number, since it uses less digits than its factorization.

66360224845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33097775.

The product of its (nonzero) digits is 1658880, while the sum is 46.

The spelling of 66360224845 in words is "sixty-six billion, three hundred sixty million, two hundred twenty-four thousand, eight hundred forty-five".