346166661643 has 4 divisors (see below), whose sum is σ = 377636358168. Its totient is φ = 314696965120.

The previous prime is 346166661613. The next prime is 346166661649.

346166661643 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 346166661643 - 2³³ = 337576727051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (346166661649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15734848246 + ... + 15734848267.

It is an arithmetic number, because the mean of its divisors is an integer number (94409089542).

Almost surely, 2^346166661643 is an apocalyptic number.

346166661643 is a deficient number, since it is larger than the sum of its proper divisors (31469696525).

346166661643 is a wasteful number, since it uses less digits than its factorization.

346166661643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31469696524.

The product of its digits is 6718464, while the sum is 52.

The spelling of 346166661643 in words is "three hundred forty-six billion, one hundred sixty-six million, six hundred sixty-one thousand, six hundred forty-three".