66366230155 has 32 divisors (see below), whose sum is σ = 83144880000. Its totient is φ = 50791910400.

The previous prime is 66366230153. The next prime is 66366230159. The reversal of 66366230155 is 55103266366.

It is not a de Polignac number, because 66366230155 - 2¹ = 66366230153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66366230153) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7370346 + ... + 7379344.

It is an arithmetic number, because the mean of its divisors is an integer number (2598277500).

Almost surely, 2^66366230155 is an apocalyptic number.

66366230155 is a deficient number, since it is larger than the sum of its proper divisors (16778649845).

66366230155 is a wasteful number, since it uses less digits than its factorization.

66366230155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9495.

The product of its (nonzero) digits is 583200, while the sum is 43.

The spelling of 66366230155 in words is "sixty-six billion, three hundred sixty-six million, two hundred thirty thousand, one hundred fifty-five".