66170502011199 has 64 divisors (see below), whose sum is σ = 98764039065600. Its totient is φ = 39190488809472.

The previous prime is 66170502011189. The next prime is 66170502011239. The reversal of 66170502011199 is 99111020507166.

66170502011199 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 66170502011199 - 2⁷ = 66170502011071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66170502011129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 178940607 + ... + 179310015.

It is an arithmetic number, because the mean of its divisors is an integer number (1543188110400).

Almost surely, 2^{66170502011199} is an apocalyptic number.

66170502011199 is a gapful number since it is divisible by the number (69) formed by its first and last digit.

66170502011199 is a deficient number, since it is larger than the sum of its proper divisors (32593537054401).

66170502011199 is a wasteful number, since it uses less digits than its factorization.

66170502011199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371464.

The product of its (nonzero) digits is 204120, while the sum is 48.

The spelling of 66170502011199 in words is "sixty-six trillion, one hundred seventy billion, five hundred two million, eleven thousand, one hundred ninety-nine".