7666707407401 has 12 divisors (see below), whose sum is σ = 9247377991872. Its totient is φ = 6225596990424.

The previous prime is 7666707407357. The next prime is 7666707407449. The reversal of 7666707407401 is 1047047076667.

It is not a de Polignac number, because 7666707407401 - 2¹⁷ = 7666707276329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7666707407201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1516955805 + ... + 1516960858.

It is an arithmetic number, because the mean of its divisors is an integer number (770614832656).

Almost surely, 2^{7666707407401} is an apocalyptic number.

It is an amenable number.

7666707407401 is a deficient number, since it is larger than the sum of its proper divisors (1580670584471).

7666707407401 is a wasteful number, since it uses less digits than its factorization.

7666707407401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3033916708 (or 3033916689 counting only the distinct ones).

The product of its (nonzero) digits is 8297856, while the sum is 55.

The spelling of 7666707407401 in words is "seven trillion, six hundred sixty-six billion, seven hundred seven million, four hundred seven thousand, four hundred one".