245981656 has 16 divisors (see below), whose sum is σ = 468100440. Its totient is φ = 121154880.

The previous prime is 245981647. The next prime is 245981663. The reversal of 245981656 is 656189542.

245981656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 228925 + ... + 229996.

Almost surely, 2^245981656 is an apocalyptic number.

It is an amenable number.

245981656 is a deficient number, since it is larger than the sum of its proper divisors (222118784).

245981656 is a wasteful number, since it uses less digits than its factorization.

245981656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458994 (or 458990 counting only the distinct ones).

The product of its digits is 518400, while the sum is 46.

The square root of 245981656 is about 15683.8023450948. The cubic root of 245981656 is about 626.5670806493.

The spelling of 245981656 in words is "two hundred forty-five million, nine hundred eighty-one thousand, six hundred fifty-six".