61065667701 has 12 divisors (see below), whose sum is σ = 90257266528. Its totient is φ = 39763690344.

The previous prime is 61065667679. The next prime is 61065667711. The reversal of 61065667701 is 10776656016.

61065667701 is a `hidden beast` number, since 6 + 10 + 6 + 566 + 7 + 70 + 1 = 666.

It is not a de Polignac number, because 61065667701 - 2⁷ = 61065667573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61065667711) 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 11 ways as a sum of consecutive naturals, for example, 78895825 + ... + 78896598.

Almost surely, 2^61065667701 is an apocalyptic number.

It is an amenable number.

61065667701 is a deficient number, since it is larger than the sum of its proper divisors (29191598827).

61065667701 is a wasteful number, since it uses less digits than its factorization.

61065667701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157792472 (or 157792469 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The spelling of 61065667701 in words is "sixty-one billion, sixty-five million, six hundred sixty-seven thousand, seven hundred one".