2201161655 has 16 divisors (see below), whose sum is σ = 3293167104. Its totient is φ = 1372152480.

The previous prime is 2201161631. The next prime is 2201161657. The reversal of 2201161655 is 5561611022.

It is a happy number.

It is not a de Polignac number, because 2201161655 - 2⁸ = 2201161399 is a prime.

It is a super-2 number, since 2×2201161655² = 9690225262884678050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201161657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2858267 + ... + 2859036.

It is an arithmetic number, because the mean of its divisors is an integer number (205822944).

Almost surely, 2^2201161655 is an apocalyptic number.

2201161655 is a deficient number, since it is larger than the sum of its proper divisors (1092005449).

2201161655 is a wasteful number, since it uses less digits than its factorization.

2201161655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5717326.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 2201161655 is about 46916.5392479028. The cubic root of 2201161655 is about 1300.8203215052.

Adding to 2201161655 its reverse (5561611022), we get a palindrome (7762772677).

The spelling of 2201161655 in words is "two billion, two hundred one million, one hundred sixty-one thousand, six hundred fifty-five".