203947491132168 has 64 divisors (see below), whose sum is σ = 582785939832960. Its totient is φ = 58262829520896.

The previous prime is 203947491132157. The next prime is 203947491132199. The reversal of 203947491132168 is 861231194749302.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80860855 + ... + 83344902.

It is an arithmetic number, because the mean of its divisors is an integer number (9106030309890).

Almost surely, 2^{203947491132168} is an apocalyptic number.

203947491132168 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

203947491132168 is an abundant number, since it is smaller than the sum of its proper divisors (378838448700792).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

203947491132168 is a wasteful number, since it uses less digits than its factorization.

203947491132168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164213166 (or 164213162 counting only the distinct ones).

The product of its (nonzero) digits is 15676416, while the sum is 60.

The spelling of 203947491132168 in words is "two hundred three trillion, nine hundred forty-seven billion, four hundred ninety-one million, one hundred thirty-two thousand, one hundred sixty-eight".