6605061400 has 96 divisors (see below), whose sum is σ = 17881935840. Its totient is φ = 2221839360.

The previous prime is 6605061367. The next prime is 6605061439. The reversal of 6605061400 is 41605066.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29692 + ... + 118708.

It is an arithmetic number, because the mean of its divisors is an integer number (186270165).

Almost surely, 2^6605061400 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6605061400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8940967920).

6605061400 is an abundant number, since it is smaller than the sum of its proper divisors (11276874440).

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

6605061400 is a wasteful number, since it uses less digits than its factorization.

6605061400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89093 (or 89084 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 6605061400 is about 81271.5288400557. The cubic root of 6605061400 is about 1876.2568308273.

Adding to 6605061400 its reverse (41605066), we get a palindrome (6646666466).

The spelling of 6605061400 in words is "six billion, six hundred five million, sixty-one thousand, four hundred".