641168363 has 4 divisors (see below), whose sum is σ = 699456408. Its totient is φ = 582880320.

The previous prime is 641168347. The next prime is 641168369. The reversal of 641168363 is 363861146.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 641168363 - 2⁴ = 641168347 is a prime.

It is a super-2 number, since 2×641168363² = 822193739424199538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (641168369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29144006 + ... + 29144027.

It is an arithmetic number, because the mean of its divisors is an integer number (174864102).

Almost surely, 2^641168363 is an apocalyptic number.

641168363 is a deficient number, since it is larger than the sum of its proper divisors (58288045).

641168363 is a wasteful number, since it uses less digits than its factorization.

641168363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58288044.

The product of its digits is 62208, while the sum is 38.

The square root of 641168363 is about 25321.3025533838. The cubic root of 641168363 is about 862.2979659253.

The spelling of 641168363 in words is "six hundred forty-one million, one hundred sixty-eight thousand, three hundred sixty-three".