66377163 has 16 divisors (see below), whose sum is σ = 93929760. Its totient is φ = 41550336.

The previous prime is 66377141. The next prime is 66377167. The reversal of 66377163 is 36177366.

It is not a de Polignac number, because 66377163 - 2¹³ = 66368971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66377167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24681 + ... + 27237.

It is an arithmetic number, because the mean of its divisors is an integer number (5870610).

Almost surely, 2^66377163 is an apocalyptic number.

66377163 is a deficient number, since it is larger than the sum of its proper divisors (27552597).

66377163 is a wasteful number, since it uses less digits than its factorization.

66377163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3086.

The product of its digits is 95256, while the sum is 39.

The square root of 66377163 is about 8147.2181141786. The cubic root of 66377163 is about 404.8923414499.

The spelling of 66377163 in words is "sixty-six million, three hundred seventy-seven thousand, one hundred sixty-three".