7665540455667 has 16 divisors (see below), whose sum is σ = 10822100332032. Its totient is φ = 4809679378560.

The previous prime is 7665540455647. The next prime is 7665540455707.

7665540455667 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 7665540455667 - 2⁸ = 7665540455411 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7665540455598 and 7665540455607.

It is not an unprimeable number, because it can be changed into a prime (7665540455647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2458578 + ... + 4623384.

It is an arithmetic number, because the mean of its divisors is an integer number (676381270752).

Almost surely, 2^{7665540455667} is an apocalyptic number.

7665540455667 is a deficient number, since it is larger than the sum of its proper divisors (3156559876365).

7665540455667 is a wasteful number, since it uses less digits than its factorization.

7665540455667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2234258.

The product of its (nonzero) digits is 635040000, while the sum is 66.

The spelling of 7665540455667 in words is "seven trillion, six hundred sixty-five billion, five hundred forty million, four hundred fifty-five thousand, six hundred sixty-seven".