6648936101 has 4 divisors (see below), whose sum is σ = 6717481932. Its totient is φ = 6580390272.

The previous prime is 6648936059. The next prime is 6648936109. The reversal of 6648936101 is 1016398466.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1016398466 = 2 ⋅508199233.

It can be written as a sum of positive squares in 2 ways, for example, as 5465644900 + 1183291201 = 73930^2 + 34399^2 .

It is a cyclic number.

It is not a de Polignac number, because 6648936101 - 2⁶ = 6648936037 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 (6648936109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34272770 + ... + 34272963.

It is an arithmetic number, because the mean of its divisors is an integer number (1679370483).

Almost surely, 2^6648936101 is an apocalyptic number.

It is an amenable number.

6648936101 is a deficient number, since it is larger than the sum of its proper divisors (68545831).

6648936101 is an equidigital number, since it uses as much as digits as its factorization.

6648936101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68545830.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 6648936101 is about 81541.0087072756. The cubic root of 6648936101 is about 1880.4020662807.

The spelling of 6648936101 in words is "six billion, six hundred forty-eight million, nine hundred thirty-six thousand, one hundred one".