1803180668 has 6 divisors (see below), whose sum is σ = 3155566176. Its totient is φ = 901590332.

The previous prime is 1803180661. The next prime is 1803180677. The reversal of 1803180668 is 8660813081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1803180661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225397580 + ... + 225397587.

It is an arithmetic number, because the mean of its divisors is an integer number (525927696).

Almost surely, 2^1803180668 is an apocalyptic number.

It is an amenable number.

1803180668 is a deficient number, since it is larger than the sum of its proper divisors (1352385508).

1803180668 is a wasteful number, since it uses less digits than its factorization.

1803180668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450795171 (or 450795169 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 41.

The square root of 1803180668 is about 42463.8748585194. The cubic root of 1803180668 is about 1217.1564762149.

The spelling of 1803180668 in words is "one billion, eight hundred three million, one hundred eighty thousand, six hundred sixty-eight".