61020165717 has 24 divisors (see below), whose sum is σ = 101030644416. Its totient is φ = 34765186176.

The previous prime is 61020165707. The next prime is 61020165727. The reversal of 61020165717 is 71756102016.

61020165717 is a `hidden beast` number, since 61 + 0 + 20 + 1 + 6 + 571 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (61020165707) and next prime (61020165727).

It is not a de Polignac number, because 61020165717 - 2¹⁰ = 61020164693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61020165707) 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 in 23 ways as a sum of consecutive naturals, for example, 1415823 + ... + 1458284.

It is an arithmetic number, because the mean of its divisors is an integer number (4209610184).

Almost surely, 2^61020165717 is an apocalyptic number.

It is an amenable number.

61020165717 is a deficient number, since it is larger than the sum of its proper divisors (40010478699).

61020165717 is a wasteful number, since it uses less digits than its factorization.

61020165717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2874457 (or 2874454 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 36.

The spelling of 61020165717 in words is "sixty-one billion, twenty million, one hundred sixty-five thousand, seven hundred seventeen".