168183333349 has 4 divisors (see below), whose sum is σ = 169726299820. Its totient is φ = 166640366880.

The previous prime is 168183333341. The next prime is 168183333359. The reversal of 168183333349 is 943333381861.

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 153776132449 + 14407200900 = 392143^2 + 120030^2 .

It is a cyclic number.

It is not a de Polignac number, because 168183333349 - 2³ = 168183333341 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 168183333296 and 168183333305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168183333341) 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, 771483072 + ... + 771483289.

It is an arithmetic number, because the mean of its divisors is an integer number (42431574955).

Almost surely, 2^168183333349 is an apocalyptic number.

It is an amenable number.

168183333349 is a deficient number, since it is larger than the sum of its proper divisors (1542966471).

168183333349 is a wasteful number, since it uses less digits than its factorization.

168183333349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1542966470.

The product of its digits is 3359232, while the sum is 52.

The spelling of 168183333349 in words is "one hundred sixty-eight billion, one hundred eighty-three million, three hundred thirty-three thousand, three hundred forty-nine".