168800641 has 4 divisors (see below), whose sum is σ = 172392192. Its totient is φ = 165209092.

The previous prime is 168800629. The next prime is 168800683. The reversal of 168800641 is 146008861.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 146008861 = 89 ⋅1640549.

It is a cyclic number.

It is not a de Polignac number, because 168800641 - 2⁵ = 168800609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 168800597 and 168800606.

It is not an unprimeable number, because it can be changed into a prime (168800141) 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, 1795705 + ... + 1795798.

It is an arithmetic number, because the mean of its divisors is an integer number (43098048).

Almost surely, 2^168800641 is an apocalyptic number.

It is an amenable number.

168800641 is a deficient number, since it is larger than the sum of its proper divisors (3591551).

168800641 is an equidigital number, since it uses as much as digits as its factorization.

168800641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3591550.

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 168800641 is about 12992.3300835531. The cubic root of 168800641 is about 552.6599972050.

The spelling of 168800641 in words is "one hundred sixty-eight million, eight hundred thousand, six hundred forty-one".