6611022200605 has 4 divisors (see below), whose sum is σ = 7933226640732. Its totient is φ = 5288817760480.

The previous prime is 6611022200593. The next prime is 6611022200729. The reversal of 6611022200605 is 5060022201166.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2423342910681 + 4187679289924 = 1556709^2 + 2046382^2 .

It is not a de Polignac number, because 6611022200605 - 2³¹ = 6608874716957 is a prime.

It is a super-2 number, since 2×6611022200605² (a number of 26 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 661102220056 + ... + 661102220065.

It is an arithmetic number, because the mean of its divisors is an integer number (1983306660183).

Almost surely, 2^{6611022200605} is an apocalyptic number.

It is an amenable number.

6611022200605 is a deficient number, since it is larger than the sum of its proper divisors (1322204440127).

6611022200605 is a wasteful number, since it uses less digits than its factorization.

6611022200605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1322204440126.

The product of its (nonzero) digits is 8640, while the sum is 31.

The spelling of 6611022200605 in words is "six trillion, six hundred eleven billion, twenty-two million, two hundred thousand, six hundred five".