61650700157161 has 2 divisors, whose sum is σ = 61650700157162. Its totient is φ = 61650700157160.

The previous prime is 61650700157107. The next prime is 61650700157209. The reversal of 61650700157161 is 16175100705616.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35741266560000 + 25909433597161 = 5978400^2 + 5090131^2 .

It is a cyclic number.

It is not a de Polignac number, because 61650700157161 - 2³⁷ = 61513261203689 is a prime.

It is not a weakly prime, because it can be changed into another prime (61650700157461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30825350078580 + 30825350078581.

It is an arithmetic number, because the mean of its divisors is an integer number (30825350078581).

Almost surely, 2^{61650700157161} is an apocalyptic number.

It is an amenable number.

61650700157161 is a deficient number, since it is larger than the sum of its proper divisors (1).

61650700157161 is an equidigital number, since it uses as much as digits as its factorization.

61650700157161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 264600, while the sum is 46.

The spelling of 61650700157161 in words is "sixty-one trillion, six hundred fifty billion, seven hundred million, one hundred fifty-seven thousand, one hundred sixty-one".