340505666505043 has 4 divisors (see below), whose sum is σ = 366698410082368. Its totient is φ = 314312922927720.

The previous prime is 340505666505041. The next prime is 340505666505077.

340505666505043 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 340505666505043 - 2¹ = 340505666505041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (340505666505041) 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, 13096371788643 + ... + 13096371788668.

It is an arithmetic number, because the mean of its divisors is an integer number (91674602520592).

Almost surely, 2^{340505666505043} is an apocalyptic number.

340505666505043 is a deficient number, since it is larger than the sum of its proper divisors (26192743577325).

340505666505043 is a wasteful number, since it uses less digits than its factorization.

340505666505043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26192743577324.

The product of its (nonzero) digits is 19440000, while the sum is 52.

The spelling of 340505666505043 in words is "three hundred forty trillion, five hundred five billion, six hundred sixty-six million, five hundred five thousand, forty-three".