2201001655 has 16 divisors (see below), whose sum is σ = 2710461600. Its totient is φ = 1714866048.

The previous prime is 2201001641. The next prime is 2201001709. The reversal of 2201001655 is 5561001022.

2201001655 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2201001655 - 2⁵ = 2201001623 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60369 + ... + 89701.

It is an arithmetic number, because the mean of its divisors is an integer number (169403850).

Almost surely, 2^2201001655 is an apocalyptic number.

2201001655 is a deficient number, since it is larger than the sum of its proper divisors (509459945).

2201001655 is a wasteful number, since it uses less digits than its factorization.

2201001655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29730.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 2201001655 is about 46914.8340613073. The cubic root of 2201001655 is about 1300.7888023459.

Adding to 2201001655 its reverse (5561001022), we get a palindrome (7762002677).

The spelling of 2201001655 in words is "two billion, two hundred one million, one thousand, six hundred fifty-five".