201330655 has 8 divisors (see below), whose sum is σ = 241994592. Its totient is φ = 160799328.

The previous prime is 201330641. The next prime is 201330697. The reversal of 201330655 is 556033102.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 201330655 - 2¹¹ = 201328607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29779 + ... + 35908.

It is an arithmetic number, because the mean of its divisors is an integer number (30249324).

Almost surely, 2^201330655 is an apocalyptic number.

201330655 is a deficient number, since it is larger than the sum of its proper divisors (40663937).

201330655 is an equidigital number, since it uses as much as digits as its factorization.

201330655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66305.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 201330655 is about 14189.1033895733. The cubic root of 201330655 is about 586.0976348403.

Adding to 201330655 its reverse (556033102), we get a palindrome (757363757).

The spelling of 201330655 in words is "two hundred one million, three hundred thirty thousand, six hundred fifty-five".