221410667160437 has 2 divisors, whose sum is σ = 221410667160438. Its totient is φ = 221410667160436.

The previous prime is 221410667160367. The next prime is 221410667160467. The reversal of 221410667160437 is 734061766014122.

221410667160437 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 169316542084561 + 52094125075876 = 13012169^2 + 7217626^2 .

It is a cyclic number.

It is not a de Polignac number, because 221410667160437 - 2¹⁴ = 221410667144053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221410667160467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110705333580218 + 110705333580219.

It is an arithmetic number, because the mean of its divisors is an integer number (110705333580219).

Almost surely, 2^{221410667160437} is an apocalyptic number.

It is an amenable number.

221410667160437 is a deficient number, since it is larger than the sum of its proper divisors (1).

221410667160437 is an equidigital number, since it uses as much as digits as its factorization.

221410667160437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2032128, while the sum is 50.

The spelling of 221410667160437 in words is "two hundred twenty-one trillion, four hundred ten billion, six hundred sixty-seven million, one hundred sixty thousand, four hundred thirty-seven".