7163066748421 has 2 divisors, whose sum is σ = 7163066748422. Its totient is φ = 7163066748420.

The previous prime is 7163066748407. The next prime is 7163066748437. The reversal of 7163066748421 is 1248476603617.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4909375235521 + 2253691512900 = 2215711^2 + 1501230^2 .

It is a cyclic number.

It is not a de Polignac number, because 7163066748421 - 2¹³ = 7163066740229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7163066718421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3581533374210 + 3581533374211.

It is an arithmetic number, because the mean of its divisors is an integer number (3581533374211).

Almost surely, 2^{7163066748421} is an apocalyptic number.

It is an amenable number.

7163066748421 is a deficient number, since it is larger than the sum of its proper divisors (1).

7163066748421 is an equidigital number, since it uses as much as digits as its factorization.

7163066748421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8128512, while the sum is 55.

The spelling of 7163066748421 in words is "seven trillion, one hundred sixty-three billion, sixty-six million, seven hundred forty-eight thousand, four hundred twenty-one".