6657260101 has 4 divisors (see below), whose sum is σ = 6669212652. Its totient is φ = 6645307552.

The previous prime is 6657260087. The next prime is 6657260107. The reversal of 6657260101 is 1010627566.

It is a happy number.

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 3252420900 + 3404839201 = 57030^2 + 58351^2 .

It is a cyclic number.

It is not a de Polignac number, because 6657260101 - 2¹¹ = 6657258053 is a prime.

It is a super-2 number, since 2×6657260101² = 88638224104733060402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6657260107) 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, 5975440 + ... + 5976553.

It is an arithmetic number, because the mean of its divisors is an integer number (1667303163).

Almost surely, 2^6657260101 is an apocalyptic number.

It is an amenable number.

6657260101 is a deficient number, since it is larger than the sum of its proper divisors (11952551).

6657260101 is a wasteful number, since it uses less digits than its factorization.

6657260101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11952550.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 6657260101 is about 81592.0345438205. The cubic root of 6657260101 is about 1881.1864493847.

Adding to 6657260101 its reverse (1010627566), we get a palindrome (7667887667).

The spelling of 6657260101 in words is "six billion, six hundred fifty-seven million, two hundred sixty thousand, one hundred one".