201555835330 has 16 divisors (see below), whose sum is σ = 366392589624. Its totient is φ = 79824092800.

The previous prime is 201555835289. The next prime is 201555835361. The reversal of 201555835330 is 33538555102.

It can be written as a sum of positive squares in 4 ways, for example, as 201293103649 + 262731681 = 448657^2 + 16209^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99779107 + ... + 99781126.

Almost surely, 2^201555835330 is an apocalyptic number.

201555835330 is a deficient number, since it is larger than the sum of its proper divisors (164836754294).

201555835330 is a wasteful number, since it uses less digits than its factorization.

201555835330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199560341.

The product of its (nonzero) digits is 270000, while the sum is 40.

The spelling of 201555835330 in words is "two hundred one billion, five hundred fifty-five million, eight hundred thirty-five thousand, three hundred thirty".