203003099966 has 8 divisors (see below), whose sum is σ = 305006306880. Its totient is φ = 101334331008.

The previous prime is 203003099963. The next prime is 203003099969. The reversal of 203003099966 is 669990300302.

It is an interprime number because it is at equal distance from previous prime (203003099963) and next prime (203003099969).

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

It is a self number, because there is not a number n which added to its sum of digits gives 203003099966.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203003099963) 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, 83607971 + ... + 83610398.

It is an arithmetic number, because the mean of its divisors is an integer number (38125788360).

Almost surely, 2^203003099966 is an apocalyptic number.

203003099966 is a deficient number, since it is larger than the sum of its proper divisors (102003206914).

203003099966 is a wasteful number, since it uses less digits than its factorization.

203003099966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167218978.

The product of its (nonzero) digits is 472392, while the sum is 47.

The spelling of 203003099966 in words is "two hundred three billion, three million, ninety-nine thousand, nine hundred sixty-six".