60664204121 has 2 divisors, whose sum is σ = 60664204122. Its totient is φ = 60664204120.

The previous prime is 60664204087. The next prime is 60664204123. The reversal of 60664204121 is 12140246606.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35900775625 + 24763428496 = 189475^2 + 157364^2 .

It is a cyclic number.

It is not a de Polignac number, because 60664204121 - 2⁶ = 60664204057 is a prime.

Together with 60664204123, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (60664204123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30332102060 + 30332102061.

It is an arithmetic number, because the mean of its divisors is an integer number (30332102061).

Almost surely, 2^60664204121 is an apocalyptic number.

It is an amenable number.

60664204121 is a deficient number, since it is larger than the sum of its proper divisors (1).

60664204121 is an equidigital number, since it uses as much as digits as its factorization.

60664204121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 32.

The spelling of 60664204121 in words is "sixty billion, six hundred sixty-four million, two hundred four thousand, one hundred twenty-one".