61683160617 has 12 divisors (see below), whose sum is σ = 95951583364. Its totient is φ = 37958868000.

The previous prime is 61683160559. The next prime is 61683160639. The reversal of 61683160617 is 71606138616.

61683160617 is a `hidden beast` number, since 6 + 1 + 6 + 8 + 31 + 606 + 1 + 7 = 666.

61683160617 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 36395482176 + 25287678441 = 190776^2 + 159021^2 .

It is not a de Polignac number, because 61683160617 - 2⁸ = 61683160361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61683160667) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 263603134 + ... + 263603367.

Almost surely, 2^61683160617 is an apocalyptic number.

It is an amenable number.

61683160617 is a deficient number, since it is larger than the sum of its proper divisors (34268422747).

61683160617 is a wasteful number, since it uses less digits than its factorization.

61683160617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527206520 (or 527206517 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The spelling of 61683160617 in words is "sixty-one billion, six hundred eighty-three million, one hundred sixty thousand, six hundred seventeen".