60206166221 has 2 divisors, whose sum is σ = 60206166222. Its totient is φ = 60206166220.

The previous prime is 60206166211. The next prime is 60206166233. The reversal of 60206166221 is 12266160206.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33347872996 + 26858293225 = 182614^2 + 163885^2 .

It is a cyclic number.

It is not a de Polignac number, because 60206166221 - 2¹⁴ = 60206149837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (60206166211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30103083110 + 30103083111.

It is an arithmetic number, because the mean of its divisors is an integer number (30103083111).

Almost surely, 2^60206166221 is an apocalyptic number.

It is an amenable number.

60206166221 is a deficient number, since it is larger than the sum of its proper divisors (1).

60206166221 is an equidigital number, since it uses as much as digits as its factorization.

60206166221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 32.

The spelling of 60206166221 in words is "sixty billion, two hundred six million, one hundred sixty-six thousand, two hundred twenty-one".