6610445420 has 24 divisors (see below), whose sum is σ = 14612564400. Its totient is φ = 2505010752.

The previous prime is 6610445417. The next prime is 6610445447. The reversal of 6610445420 is 245440166.

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, 8697575 + ... + 8698334.

It is an arithmetic number, because the mean of its divisors is an integer number (608856850).

Almost surely, 2^6610445420 is an apocalyptic number.

It is an amenable number.

6610445420 is an abundant number, since it is smaller than the sum of its proper divisors (8002118980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6610445420 is a wasteful number, since it uses less digits than its factorization.

6610445420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17395937 (or 17395935 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 6610445420 is about 81304.6457467222. The cubic root of 6610445420 is about 1876.7664935517.

Adding to 6610445420 its reverse (245440166), we get a palindrome (6855885586).

The spelling of 6610445420 in words is "six billion, six hundred ten million, four hundred forty-five thousand, four hundred twenty".