843378166342 has 16 divisors (see below), whose sum is σ = 1288050987312. Its totient is φ = 414068054400.

The previous prime is 843378166327. The next prime is 843378166361. The reversal of 843378166342 is 243661873348.

It is a happy number.

It is a super-2 number, since 2×843378166342² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10012159 + ... + 10096042.

It is an arithmetic number, because the mean of its divisors is an integer number (80503186707).

Almost surely, 2^843378166342 is an apocalyptic number.

843378166342 is a deficient number, since it is larger than the sum of its proper divisors (444672820970).

843378166342 is a wasteful number, since it uses less digits than its factorization.

843378166342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20108583.

The product of its digits is 13934592, while the sum is 55.

The spelling of 843378166342 in words is "eight hundred forty-three billion, three hundred seventy-eight million, one hundred sixty-six thousand, three hundred forty-two".