168220799 has 8 divisors (see below), whose sum is σ = 170760960. Its totient is φ = 165698776.

The previous prime is 168220757. The next prime is 168220807. The reversal of 168220799 is 997022861.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 168220799 - 2²⁴ = 151443583 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 (168220709) 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, 14762 + ... + 23544.

It is an arithmetic number, because the mean of its divisors is an integer number (21345120).

Almost surely, 2^168220799 is an apocalyptic number.

168220799 is a deficient number, since it is larger than the sum of its proper divisors (2540161).

168220799 is a wasteful number, since it uses less digits than its factorization.

168220799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9069.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 168220799 is about 12969.9961063988. The cubic root of 168220799 is about 552.0264626658.

The spelling of 168220799 in words is "one hundred sixty-eight million, two hundred twenty thousand, seven hundred ninety-nine".