65560155272761 has 8 divisors (see below), whose sum is σ = 67949776607240. Its totient is φ = 63203045793408.

The previous prime is 65560155272737. The next prime is 65560155272783. The reversal of 65560155272761 is 16727255106556.

It can be written as a sum of positive squares in 4 ways, for example, as 8321171006736 + 57238984266025 = 2884644^2 + 7565645^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65560155272761 - 2¹⁵ = 65560155239993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65560155272696 and 65560155272705.

It is not an unprimeable number, because it can be changed into a prime (65560155270761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8127959676 + ... + 8127967741.

It is an arithmetic number, because the mean of its divisors is an integer number (8493722075905).

Almost surely, 2^{65560155272761} is an apocalyptic number.

It is an amenable number.

65560155272761 is a deficient number, since it is larger than the sum of its proper divisors (2389621334479).

65560155272761 is a wasteful number, since it uses less digits than its factorization.

65560155272761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16255927563.

The product of its (nonzero) digits is 26460000, while the sum is 58.

The spelling of 65560155272761 in words is "sixty-five trillion, five hundred sixty billion, one hundred fifty-five million, two hundred seventy-two thousand, seven hundred sixty-one".