166943837463 has 8 divisors (see below), whose sum is σ = 239714228208. Its totient is φ = 102734669184.

The previous prime is 166943837407. The next prime is 166943837471. The reversal of 166943837463 is 364738349661.

It is a happy number.

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

It is not a de Polignac number, because 166943837463 - 2¹⁰ = 166943836439 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 166943837397 and 166943837406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166943837063) 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, 2140305570 + ... + 2140305647.

It is an arithmetic number, because the mean of its divisors is an integer number (29964278526).

Almost surely, 2^166943837463 is an apocalyptic number.

166943837463 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

166943837463 is a deficient number, since it is larger than the sum of its proper divisors (72770390745).

166943837463 is a wasteful number, since it uses less digits than its factorization.

166943837463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4280611233.

The product of its digits is 47029248, while the sum is 60.

The spelling of 166943837463 in words is "one hundred sixty-six billion, nine hundred forty-three million, eight hundred thirty-seven thousand, four hundred sixty-three".