77665330411 has 4 divisors (see below), whose sum is σ = 81752979400. Its totient is φ = 73577681424.

The previous prime is 77665330349. The next prime is 77665330427. The reversal of 77665330411 is 11403356677.

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

It is a cyclic number.

It is not a de Polignac number, because 77665330411 - 2⁷ = 77665330283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77665330451) 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 3 ways as a sum of consecutive naturals, for example, 2043824466 + ... + 2043824503.

It is an arithmetic number, because the mean of its divisors is an integer number (20438244850).

Almost surely, 2^77665330411 is an apocalyptic number.

77665330411 is a deficient number, since it is larger than the sum of its proper divisors (4087648989).

77665330411 is a wasteful number, since it uses less digits than its factorization.

77665330411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4087648988.

The product of its (nonzero) digits is 317520, while the sum is 43.

The spelling of 77665330411 in words is "seventy-seven billion, six hundred sixty-five million, three hundred thirty thousand, four hundred eleven".