66236161043 has 24 divisors (see below), whose sum is σ = 73590068160. Its totient is φ = 59554410240.

The previous prime is 66236161027. The next prime is 66236161097. The reversal of 66236161043 is 34016163266.

It is not a de Polignac number, because 66236161043 - 2⁴ = 66236161027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66236160988 and 66236161006.

It is not an unprimeable number, because it can be changed into a prime (66236161543) 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 23 ways as a sum of consecutive naturals, for example, 4517318 + ... + 4531956.

It is an arithmetic number, because the mean of its divisors is an integer number (3066252840).

Almost surely, 2^66236161043 is an apocalyptic number.

66236161043 is a deficient number, since it is larger than the sum of its proper divisors (7353907117).

66236161043 is a wasteful number, since it uses less digits than its factorization.

66236161043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15359 (or 15346 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 38.

The spelling of 66236161043 in words is "sixty-six billion, two hundred thirty-six million, one hundred sixty-one thousand, forty-three".