60164220421 has 2 divisors, whose sum is σ = 60164220422. Its totient is φ = 60164220420.

The previous prime is 60164220409. The next prime is 60164220503. The reversal of 60164220421 is 12402246106.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42464844900 + 17699375521 = 206070^2 + 133039^2 .

It is a cyclic number.

It is not a de Polignac number, because 60164220421 - 2⁷ = 60164220293 is a prime.

It is a super-3 number, since 3×60164220421³ (a number of 33 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 60164220421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (60164220521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30082110210 + 30082110211.

It is an arithmetic number, because the mean of its divisors is an integer number (30082110211).

Almost surely, 2^60164220421 is an apocalyptic number.

It is an amenable number.

60164220421 is a deficient number, since it is larger than the sum of its proper divisors (1).

60164220421 is an equidigital number, since it uses as much as digits as its factorization.

60164220421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 60164220421 its reverse (12402246106), we get a palindrome (72566466527).

The spelling of 60164220421 in words is "sixty billion, one hundred sixty-four million, two hundred twenty thousand, four hundred twenty-one".