35210721900161 has 2 divisors, whose sum is σ = 35210721900162. Its totient is φ = 35210721900160.

The previous prime is 35210721900143. The next prime is 35210721900241. The reversal of 35210721900161 is 16100912701253.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19467729450625 + 15742992449536 = 4412225^2 + 3967744^2 .

It is a cyclic number.

It is not a de Polignac number, because 35210721900161 - 2⁴² = 30812675389057 is a prime.

It is a super-3 number, since 3×35210721900161³ (a number of 42 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (35210721906161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17605360950080 + 17605360950081.

It is an arithmetic number, because the mean of its divisors is an integer number (17605360950081).

Almost surely, 2^{35210721900161} is an apocalyptic number.

It is an amenable number.

35210721900161 is a deficient number, since it is larger than the sum of its proper divisors (1).

35210721900161 is an equidigital number, since it uses as much as digits as its factorization.

35210721900161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 38.

The spelling of 35210721900161 in words is "thirty-five trillion, two hundred ten billion, seven hundred twenty-one million, nine hundred thousand, one hundred sixty-one".