245568816 has 30 divisors (see below), whose sum is σ = 687252020. Its totient is φ = 81856224.

The previous prime is 245568793. The next prime is 245568833. The reversal of 245568816 is 618865542.

245568816 is a `hidden beast` number, since 2 + 4 + 5 + 568 + 81 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 852526 + ... + 852813.

Almost surely, 2^245568816 is an apocalyptic number.

It is an amenable number.

245568816 is an abundant number, since it is smaller than the sum of its proper divisors (441683204).

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

245568816 is a wasteful number, since it uses less digits than its factorization.

245568816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1705353 (or 1705344 counting only the distinct ones).

The product of its digits is 460800, while the sum is 45.

The square root of 245568816 is about 15670.6354689272. The cubic root of 245568816 is about 626.2163542228.

The spelling of 245568816 in words is "two hundred forty-five million, five hundred sixty-eight thousand, eight hundred sixteen".