6716620201 has 4 divisors (see below), whose sum is σ = 6716899332. Its totient is φ = 6716341072.

The previous prime is 6716620189. The next prime is 6716620237. The reversal of 6716620201 is 1020266176.

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 6435890176 + 280730025 = 80224^2 + 16755^2 .

It is a cyclic number.

It is not a de Polignac number, because 6716620201 - 2⁷ = 6716620073 is a prime.

It is a super-2 number, since 2×6716620201² = 90225973848962560802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6716620271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99670 + ... + 152863.

It is an arithmetic number, because the mean of its divisors is an integer number (1679224833).

Almost surely, 2^6716620201 is an apocalyptic number.

It is an amenable number.

6716620201 is a deficient number, since it is larger than the sum of its proper divisors (279131).

6716620201 is a wasteful number, since it uses less digits than its factorization.

6716620201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279130.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 6716620201 is about 81954.9888719412. The cubic root of 6716620201 is about 1886.7611728552.

Adding to 6716620201 its reverse (1020266176), we get a palindrome (7736886377).

The spelling of 6716620201 in words is "six billion, seven hundred sixteen million, six hundred twenty thousand, two hundred one".