346643221411 has 2 divisors, whose sum is σ = 346643221412. Its totient is φ = 346643221410.

The previous prime is 346643221409. The next prime is 346643221487. The reversal of 346643221411 is 114122346643.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 346643221411 - 2¹ = 346643221409 is a prime.

Together with 346643221409, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (346643222411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173321610705 + 173321610706.

It is an arithmetic number, because the mean of its divisors is an integer number (173321610706).

Almost surely, 2^346643221411 is an apocalyptic number.

346643221411 is a deficient number, since it is larger than the sum of its proper divisors (1).

346643221411 is an equidigital number, since it uses as much as digits as its factorization.

346643221411 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 37.

It can be divided in two parts, 3466432 and 21411, that added together give a palindrome (3487843).

The spelling of 346643221411 in words is "three hundred forty-six billion, six hundred forty-three million, two hundred twenty-one thousand, four hundred eleven".