66366226155 has 32 divisors (see below), whose sum is σ = 111943507968. Its totient is φ = 33524726400.

The previous prime is 66366226123. The next prime is 66366226177. The reversal of 66366226155 is 55162266366.

It is not a de Polignac number, because 66366226155 - 2⁵ = 66366226123 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1496476 + ... + 1540185.

It is an arithmetic number, because the mean of its divisors is an integer number (3498234624).

Almost surely, 2^66366226155 is an apocalyptic number.

66366226155 is a deficient number, since it is larger than the sum of its proper divisors (45577281813).

66366226155 is a wasteful number, since it uses less digits than its factorization.

66366226155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3036747.

The product of its digits is 2332800, while the sum is 48.

The spelling of 66366226155 in words is "sixty-six billion, three hundred sixty-six million, two hundred twenty-six thousand, one hundred fifty-five".