66161823202 has 16 divisors (see below), whose sum is σ = 101424246912. Its totient is φ = 32354712720.

The previous prime is 66161823179. The next prime is 66161823209. The reversal of 66161823202 is 20232816166.

It is not an unprimeable number, because it can be changed into a prime (66161823209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105624 + ... + 378787.

It is an arithmetic number, because the mean of its divisors is an integer number (6339015432).

Almost surely, 2^66161823202 is an apocalyptic number.

66161823202 is a deficient number, since it is larger than the sum of its proper divisors (35262423710).

66161823202 is a wasteful number, since it uses less digits than its factorization.

66161823202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485913.

The product of its (nonzero) digits is 41472, while the sum is 37.

The spelling of 66161823202 in words is "sixty-six billion, one hundred sixty-one million, eight hundred twenty-three thousand, two hundred two".