4686955661 has 2 divisors, whose sum is σ = 4686955662. Its totient is φ = 4686955660.

The previous prime is 4686955657. The next prime is 4686955717. The reversal of 4686955661 is 1665596864.

It is a happy number.

It is an a-pointer prime, because the next prime (4686955717) can be obtained adding 4686955661 to its sum of digits (56).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4225780036 + 461175625 = 65006^2 + 21475^2 .

It is a cyclic number.

It is not a de Polignac number, because 4686955661 - 2² = 4686955657 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4686955597 and 4686955606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4686955061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2343477830 + 2343477831.

It is an arithmetic number, because the mean of its divisors is an integer number (2343477831).

Almost surely, 2^4686955661 is an apocalyptic number.

It is an amenable number.

4686955661 is a deficient number, since it is larger than the sum of its proper divisors (1).

4686955661 is an equidigital number, since it uses as much as digits as its factorization.

4686955661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9331200, while the sum is 56.

The square root of 4686955661 is about 68461.3442827410. The cubic root of 4686955661 is about 1673.5175907487.

The spelling of 4686955661 in words is "four billion, six hundred eighty-six million, nine hundred fifty-five thousand, six hundred sixty-one".