6610903221 has 16 divisors (see below), whose sum is σ = 9496005120. Its totient is φ = 4066779840.

The previous prime is 6610903193. The next prime is 6610903231. The reversal of 6610903221 is 1223090166.

It is not a de Polignac number, because 6610903221 - 2⁶ = 6610903157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6610903231) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 84316 + ... + 142586.

It is an arithmetic number, because the mean of its divisors is an integer number (593500320).

Almost surely, 2^6610903221 is an apocalyptic number.

It is an amenable number.

6610903221 is a deficient number, since it is larger than the sum of its proper divisors (2885101899).

6610903221 is a wasteful number, since it uses less digits than its factorization.

6610903221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61196.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 6610903221 is about 81307.4610414075. The cubic root of 6610903221 is about 1876.8098171953.

Adding to 6610903221 its reverse (1223090166), we get a palindrome (7833993387).

The spelling of 6610903221 in words is "six billion, six hundred ten million, nine hundred three thousand, two hundred twenty-one".