66111225160562 has 8 divisors (see below), whose sum is σ = 99599880701100. Its totient is φ = 32911264926864.

The previous prime is 66111225160549. The next prime is 66111225160579. The reversal of 66111225160562 is 26506152211166.

It can be written as a sum of positive squares in 2 ways, for example, as 50436997813801 + 15674227346761 = 7101901^2 + 3959069^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72173826137 + ... + 72173827052.

Almost surely, 2^{66111225160562} is an apocalyptic number.

66111225160562 is a deficient number, since it is larger than the sum of its proper divisors (33488655540538).

66111225160562 is a wasteful number, since it uses less digits than its factorization.

66111225160562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144347653420.

The product of its (nonzero) digits is 259200, while the sum is 44.

The spelling of 66111225160562 in words is "sixty-six trillion, one hundred eleven billion, two hundred twenty-five million, one hundred sixty thousand, five hundred sixty-two".