7766120101 has 2 divisors, whose sum is σ = 7766120102. Its totient is φ = 7766120100.

The previous prime is 7766120077. The next prime is 7766120113. The reversal of 7766120101 is 1010216677.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4208116900 + 3558003201 = 64870^2 + 59649^2 .

It is an emirp because it is prime and its reverse (1010216677) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7766120101 - 2¹¹ = 7766118053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7766120191) 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 as a sum of consecutive naturals, namely, 3883060050 + 3883060051.

It is an arithmetic number, because the mean of its divisors is an integer number (3883060051).

Almost surely, 2^7766120101 is an apocalyptic number.

It is an amenable number.

7766120101 is a deficient number, since it is larger than the sum of its proper divisors (1).

7766120101 is an equidigital number, since it uses as much as digits as its factorization.

7766120101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3528, while the sum is 31.

The square root of 7766120101 is about 88125.5927696376. The cubic root of 7766120101 is about 1980.3169323129.

Adding to 7766120101 its reverse (1010216677), we get a palindrome (8776336778).

The spelling of 7766120101 in words is "seven billion, seven hundred sixty-six million, one hundred twenty thousand, one hundred one".