203389274168 has 32 divisors (see below), whose sum is σ = 393766642560. Its totient is φ = 98386669440.

The previous prime is 203389274161. The next prime is 203389274233. The reversal of 203389274168 is 861472983302.

It is a Cunningham number, because it is equal to 450987²-1.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203389274161) 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, 789230 + ... + 1014722.

It is an arithmetic number, because the mean of its divisors is an integer number (12305207580).

Almost surely, 2^203389274168 is an apocalyptic number.

It is an amenable number.

203389274168 is a deficient number, since it is larger than the sum of its proper divisors (190377368392).

203389274168 is a wasteful number, since it uses less digits than its factorization.

203389274168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229167 (or 229163 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 53.

The spelling of 203389274168 in words is "two hundred three billion, three hundred eighty-nine million, two hundred seventy-four thousand, one hundred sixty-eight".