245813666 has 32 divisors (see below), whose sum is σ = 431903232. Its totient is φ = 102738240.

The previous prime is 245813653. The next prime is 245813677. The reversal of 245813666 is 666318542.

245813666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 260756 + ... + 261696.

It is an arithmetic number, because the mean of its divisors is an integer number (13496976).

Almost surely, 2^245813666 is an apocalyptic number.

245813666 is a deficient number, since it is larger than the sum of its proper divisors (186089566).

245813666 is a wasteful number, since it uses less digits than its factorization.

245813666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1394.

The product of its digits is 207360, while the sum is 41.

The square root of 245813666 is about 15678.4459051272. The cubic root of 245813666 is about 626.4244128639.

The spelling of 245813666 in words is "two hundred forty-five million, eight hundred thirteen thousand, six hundred sixty-six".