6601008101 has 12 divisors (see below), whose sum is σ = 7206957900. Its totient is φ = 6037936128.

The previous prime is 6601008091. The next prime is 6601008133. The reversal of 6601008101 is 1018001066.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3813062500 + 2787945601 = 61750^2 + 52801^2 .

It is a de Polignac number, because none of the positive numbers 2^k-6601008101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6601008181) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 304796 + ... + 325733.

It is an arithmetic number, because the mean of its divisors is an integer number (600579825).

Almost surely, 2^6601008101 is an apocalyptic number.

It is an amenable number.

6601008101 is a deficient number, since it is larger than the sum of its proper divisors (605949799).

6601008101 is a wasteful number, since it uses less digits than its factorization.

6601008101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630596 (or 630577 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 6601008101 is about 81246.5882422148. The cubic root of 6601008101 is about 1875.8729541982.

Adding to 6601008101 its reverse (1018001066), we get a palindrome (7619009167).

The spelling of 6601008101 in words is "six billion, six hundred one million, eight thousand, one hundred one".