65110077061 has 4 divisors (see below), whose sum is σ = 68940081612. Its totient is φ = 61280072512.

The previous prime is 65110077041. The next prime is 65110077121. The reversal of 65110077061 is 16077001156.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 53231256961 + 11878820100 = 230719^2 + 108990^2 .

It is a cyclic number.

It is not a de Polignac number, because 65110077061 - 2³¹ = 62962593413 is a prime.

It is a super-3 number, since 3×65110077061³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65110077031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1915002250 + ... + 1915002283.

It is an arithmetic number, because the mean of its divisors is an integer number (17235020403).

Almost surely, 2^65110077061 is an apocalyptic number.

It is an amenable number.

65110077061 is a deficient number, since it is larger than the sum of its proper divisors (3830004551).

65110077061 is a wasteful number, since it uses less digits than its factorization.

65110077061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3830004550.

The product of its (nonzero) digits is 8820, while the sum is 34.

The spelling of 65110077061 in words is "sixty-five billion, one hundred ten million, seventy-seven thousand, sixty-one".