7766672766653 has 2 divisors, whose sum is σ = 7766672766654. Its totient is φ = 7766672766652.

The previous prime is 7766672766647. The next prime is 7766672766679. The reversal of 7766672766653 is 3566672766677.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7738427930809 + 28244835844 = 2781803^2 + 168062^2 .

It is a cyclic number.

It is not a de Polignac number, because 7766672766653 - 2²⁴ = 7766655989437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7766672766353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3883336383326 + 3883336383327.

It is an arithmetic number, because the mean of its divisors is an integer number (3883336383327).

Almost surely, 2^{7766672766653} is an apocalyptic number.

It is an amenable number.

7766672766653 is a deficient number, since it is larger than the sum of its proper divisors (1).

7766672766653 is an equidigital number, since it uses as much as digits as its factorization.

7766672766653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3360631680, while the sum is 74.

The spelling of 7766672766653 in words is "seven trillion, seven hundred sixty-six billion, six hundred seventy-two million, seven hundred sixty-six thousand, six hundred fifty-three".