6606623011 has 4 divisors (see below), whose sum is σ = 6995247912. Its totient is φ = 6217998112.

The previous prime is 6606622993. The next prime is 6606623021. The reversal of 6606623011 is 1103266066.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6606623011 is a prime.

It is a super-2 number, since 2×6606623011² = 87294935218949412242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6606623021) 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 3 ways as a sum of consecutive naturals, for example, 194312425 + ... + 194312458.

It is an arithmetic number, because the mean of its divisors is an integer number (1748811978).

Almost surely, 2^6606623011 is an apocalyptic number.

6606623011 is a deficient number, since it is larger than the sum of its proper divisors (388624901).

6606623011 is a wasteful number, since it uses less digits than its factorization.

6606623011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388624900.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 6606623011 is about 81281.1356404424. The cubic root of 6606623011 is about 1876.4046847356.

Adding to 6606623011 its reverse (1103266066), we get a palindrome (7709889077).

The spelling of 6606623011 in words is "six billion, six hundred six million, six hundred twenty-three thousand, eleven".