245991168 has 90 divisors (see below), whose sum is σ = 733562984. Its totient is φ = 81990144.

The previous prime is 245991149. The next prime is 245991191. The reversal of 245991168 is 861199542.

245991168 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a nialpdrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 14805 + ... + 26667.

Almost surely, 2^245991168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245991168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (366781492).

245991168 is an abundant number, since it is smaller than the sum of its proper divisors (487571816).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

245991168 is an equidigital number, since it uses as much as digits as its factorization.

245991168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11891 (or 11868 counting only the distinct ones).

The product of its digits is 155520, while the sum is 45.

The square root of 245991168 is about 15684.1055849545. The cubic root of 245991168 is about 626.5751569009.

The spelling of 245991168 in words is "two hundred forty-five million, nine hundred ninety-one thousand, one hundred sixty-eight".