7163566121 has 2 divisors, whose sum is σ = 7163566122. Its totient is φ = 7163566120.

The previous prime is 7163566031. The next prime is 7163566169. The reversal of 7163566121 is 1216653617.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6294200896 + 869365225 = 79336^2 + 29485^2 .

It is a cyclic number.

It is not a de Polignac number, because 7163566121 - 2¹⁴ = 7163549737 is a prime.

It is not a weakly prime, because it can be changed into another prime (7163562121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3581783060 + 3581783061.

It is an arithmetic number, because the mean of its divisors is an integer number (3581783061).

Almost surely, 2^7163566121 is an apocalyptic number.

It is an amenable number.

7163566121 is a deficient number, since it is larger than the sum of its proper divisors (1).

7163566121 is an equidigital number, since it uses as much as digits as its factorization.

7163566121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45360, while the sum is 38.

The square root of 7163566121 is about 84637.8527669506. The cubic root of 7163566121 is about 1927.7161743120.

The spelling of 7163566121 in words is "seven billion, one hundred sixty-three million, five hundred sixty-six thousand, one hundred twenty-one".