201818382002 has 8 divisors (see below), whose sum is σ = 305724876012. Its totient is φ = 99910090000.

The previous prime is 201818381953. The next prime is 201818382041. The reversal of 201818382002 is 200283818102.

It can be written as a sum of positive squares in 2 ways, for example, as 190376015041 + 11442366961 = 436321^2 + 106969^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 499550249 + ... + 499550652.

Almost surely, 2^201818382002 is an apocalyptic number.

201818382002 is a deficient number, since it is larger than the sum of its proper divisors (103906494010).

201818382002 is a wasteful number, since it uses less digits than its factorization.

201818382002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 999101004.

The product of its (nonzero) digits is 12288, while the sum is 35.

The spelling of 201818382002 in words is "two hundred one billion, eight hundred eighteen million, three hundred eighty-two thousand, two".