168077663 has 4 divisors (see below), whose sum is σ = 181006728. Its totient is φ = 155148600.

The previous prime is 168077653. The next prime is 168077677. The reversal of 168077663 is 366770861.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 366770861 = 2203 ⋅166487.

It is a cyclic number.

It is not a de Polignac number, because 168077663 - 2¹⁴ = 168061279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168077653) 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, 6464513 + ... + 6464538.

It is an arithmetic number, because the mean of its divisors is an integer number (45251682).

Almost surely, 2^168077663 is an apocalyptic number.

168077663 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

168077663 is a deficient number, since it is larger than the sum of its proper divisors (12929065).

168077663 is a wasteful number, since it uses less digits than its factorization.

168077663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12929064.

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 168077663 is about 12964.4769659250. The cubic root of 168077663 is about 551.8698484984.

The spelling of 168077663 in words is "one hundred sixty-eight million, seventy-seven thousand, six hundred sixty-three".