2660301421 has 2 divisors, whose sum is σ = 2660301422. Its totient is φ = 2660301420.

The previous prime is 2660301419. The next prime is 2660301461. The reversal of 2660301421 is 1241030662.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2481036100 + 179265321 = 49810^2 + 13389^2 .

It is a cyclic number.

It is not a de Polignac number, because 2660301421 - 2¹ = 2660301419 is a prime.

Together with 2660301419, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2660301461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1330150710 + 1330150711.

It is an arithmetic number, because the mean of its divisors is an integer number (1330150711).

Almost surely, 2^2660301421 is an apocalyptic number.

It is an amenable number.

2660301421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2660301421 is an equidigital number, since it uses as much as digits as its factorization.

2660301421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 2660301421 is about 51578.1099013913. The cubic root of 2660301421 is about 1385.6183159338.

The spelling of 2660301421 in words is "two billion, six hundred sixty million, three hundred one thousand, four hundred twenty-one".