203422612166 has 8 divisors (see below), whose sum is σ = 312576209064. Its totient is φ = 99230542480.

The previous prime is 203422612163. The next prime is 203422612193. The reversal of 203422612166 is 661216224302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203422612163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1240381700 + ... + 1240381863.

It is an arithmetic number, because the mean of its divisors is an integer number (39072026133).

Almost surely, 2^203422612166 is an apocalyptic number.

203422612166 is a deficient number, since it is larger than the sum of its proper divisors (109153596898).

203422612166 is a wasteful number, since it uses less digits than its factorization.

203422612166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2480763606.

The product of its (nonzero) digits is 41472, while the sum is 35.

Adding to 203422612166 its reverse (661216224302), we get a palindrome (864638836468).

The spelling of 203422612166 in words is "two hundred three billion, four hundred twenty-two million, six hundred twelve thousand, one hundred sixty-six".