6222600661 has 8 divisors (see below), whose sum is σ = 6592114584. Its totient is φ = 5853473280.

The previous prime is 6222600653. The next prime is 6222600721. The reversal of 6222600661 is 1660062226.

It can be written as a sum of positive squares in 4 ways, for example, as 4609052100 + 1613548561 = 67890^2 + 40169^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6222600661 - 2³ = 6222600653 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 (6222600161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63150 + ... + 128191.

It is an arithmetic number, because the mean of its divisors is an integer number (824014323).

Almost surely, 2^6222600661 is an apocalyptic number.

It is an amenable number.

6222600661 is a deficient number, since it is larger than the sum of its proper divisors (369513923).

6222600661 is a wasteful number, since it uses less digits than its factorization.

6222600661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193271.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 6222600661 is about 78883.4625317626. The cubic root of 6222600661 is about 1839.3200722086.

Adding to 6222600661 its reverse (1660062226), we get a palindrome (7882662887).

The spelling of 6222600661 in words is "six billion, two hundred twenty-two million, six hundred thousand, six hundred sixty-one".