35220345161 has 2 divisors, whose sum is σ = 35220345162. Its totient is φ = 35220345160.

The previous prime is 35220345143. The next prime is 35220345217. The reversal of 35220345161 is 16154302253.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20920729600 + 14299615561 = 144640^2 + 119581^2 .

It is an emirp because it is prime and its reverse (16154302253) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 35220345161 - 2¹⁴ = 35220328777 is a prime.

It is a super-2 number, since 2×35220345161² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (35220345101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17610172580 + 17610172581.

It is an arithmetic number, because the mean of its divisors is an integer number (17610172581).

Almost surely, 2^35220345161 is an apocalyptic number.

It is an amenable number.

35220345161 is a deficient number, since it is larger than the sum of its proper divisors (1).

35220345161 is an equidigital number, since it uses as much as digits as its factorization.

35220345161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600, while the sum is 32.

The spelling of 35220345161 in words is "thirty-five billion, two hundred twenty million, three hundred forty-five thousand, one hundred sixty-one".