345414055561 has 4 divisors (see below), whose sum is σ = 351076581124. Its totient is φ = 339751530000.

The previous prime is 345414055531. The next prime is 345414055589. The reversal of 345414055561 is 165550414543.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 125330160400 + 220083895161 = 354020^2 + 469131^2 .

It is a cyclic number.

It is not a de Polignac number, because 345414055561 - 2¹⁹ = 345413531273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345414055531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2831262690 + ... + 2831262811.

It is an arithmetic number, because the mean of its divisors is an integer number (87769145281).

Almost surely, 2^345414055561 is an apocalyptic number.

It is an amenable number.

345414055561 is a deficient number, since it is larger than the sum of its proper divisors (5662525563).

345414055561 is an equidigital number, since it uses as much as digits as its factorization.

345414055561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5662525562.

The product of its (nonzero) digits is 720000, while the sum is 43.

The spelling of 345414055561 in words is "three hundred forty-five billion, four hundred fourteen million, fifty-five thousand, five hundred sixty-one".