355966421407 has 2 divisors, whose sum is σ = 355966421408. Its totient is φ = 355966421406.

The previous prime is 355966421389. The next prime is 355966421411. The reversal of 355966421407 is 704124669553.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 355966421407 - 2¹¹ = 355966419359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (355966421417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177983210703 + 177983210704.

It is an arithmetic number, because the mean of its divisors is an integer number (177983210704).

Almost surely, 2^355966421407 is an apocalyptic number.

355966421407 is a deficient number, since it is larger than the sum of its proper divisors (1).

355966421407 is an equidigital number, since it uses as much as digits as its factorization.

355966421407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5443200, while the sum is 52.

The spelling of 355966421407 in words is "three hundred fifty-five billion, nine hundred sixty-six million, four hundred twenty-one thousand, four hundred seven".