35642655624661 has 2 divisors, whose sum is σ = 35642655624662. Its totient is φ = 35642655624660.

The previous prime is 35642655624647. The next prime is 35642655624683. The reversal of 35642655624661 is 16642655624653.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25485272310436 + 10157383314225 = 5048294^2 + 3187065^2 .

It is a cyclic number.

It is not a de Polignac number, because 35642655624661 - 2⁴¹ = 33443632369109 is a prime.

It is a super-2 number, since 2×35642655624661² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 35642655624661.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (35642655624691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17821327812330 + 17821327812331.

It is an arithmetic number, because the mean of its divisors is an integer number (17821327812331).

Almost surely, 2^{35642655624661} is an apocalyptic number.

It is an amenable number.

35642655624661 is a deficient number, since it is larger than the sum of its proper divisors (1).

35642655624661 is an equidigital number, since it uses as much as digits as its factorization.

35642655624661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 186624000, while the sum is 61.

The spelling of 35642655624661 in words is "thirty-five trillion, six hundred forty-two billion, six hundred fifty-five million, six hundred twenty-four thousand, six hundred sixty-one".