346412665321 has 8 divisors (see below), whose sum is σ = 353838649824. Its totient is φ = 339059129760.

The previous prime is 346412665307. The next prime is 346412665351. The reversal of 346412665321 is 123566214643.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 346412665321 - 2¹¹ = 346412663273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (346412665351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18102571 + ... + 18121696.

It is an arithmetic number, because the mean of its divisors is an integer number (44229831228).

Almost surely, 2^346412665321 is an apocalyptic number.

It is an amenable number.

346412665321 is a deficient number, since it is larger than the sum of its proper divisors (7425984503).

346412665321 is a wasteful number, since it uses less digits than its factorization.

346412665321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36224471.

The product of its digits is 622080, while the sum is 43.

Adding to 346412665321 its reverse (123566214643), we get a palindrome (469978879964).

It can be divided in two parts, 34641 and 2665321, that added together give a palindrome (2699962).

The spelling of 346412665321 in words is "three hundred forty-six billion, four hundred twelve million, six hundred sixty-five thousand, three hundred twenty-one".