6960077540561 has 8 divisors (see below), whose sum is σ = 6981444057000. Its totient is φ = 6938719159680.

The previous prime is 6960077540551. The next prime is 6960077540573. The reversal of 6960077540561 is 1650457700696.

It can be written as a sum of positive squares in 4 ways, for example, as 2182548249025 + 4777529291536 = 1477345^2 + 2185756^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6960077540561 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6960077540497 and 6960077540506.

It is not an unprimeable number, because it can be changed into a prime (6960077540551) 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 7 ways as a sum of consecutive naturals, for example, 318020 + ... + 3744501.

It is an arithmetic number, because the mean of its divisors is an integer number (872680507125).

Almost surely, 2^{6960077540561} is an apocalyptic number.

It is an amenable number.

6960077540561 is a deficient number, since it is larger than the sum of its proper divisors (21366516439).

6960077540561 is a wasteful number, since it uses less digits than its factorization.

6960077540561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4067779.

The product of its (nonzero) digits is 9525600, while the sum is 56.

The spelling of 6960077540561 in words is "six trillion, nine hundred sixty billion, seventy-seven million, five hundred forty thousand, five hundred sixty-one".