61016216293 has 2 divisors, whose sum is σ = 61016216294. Its totient is φ = 61016216292.

The previous prime is 61016216251. The next prime is 61016216297. The reversal of 61016216293 is 39261261016.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52377815044 + 8638401249 = 228862^2 + 92943^2 .

It is a cyclic number.

It is not a de Polignac number, because 61016216293 - 2¹³ = 61016208101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61016216297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30508108146 + 30508108147.

It is an arithmetic number, because the mean of its divisors is an integer number (30508108147).

Almost surely, 2^61016216293 is an apocalyptic number.

It is an amenable number.

61016216293 is a deficient number, since it is larger than the sum of its proper divisors (1).

61016216293 is an equidigital number, since it uses as much as digits as its factorization.

61016216293 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 37.

The spelling of 61016216293 in words is "sixty-one billion, sixteen million, two hundred sixteen thousand, two hundred ninety-three".