4145645456 has 20 divisors (see below), whose sum is σ = 8045616000. Its totient is φ = 2069357472.

The previous prime is 4145645447. The next prime is 4145645459. The reversal of 4145645456 is 6545465414.

4145645456 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (4145645459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206696 + ... + 225863.

It is an arithmetic number, because the mean of its divisors is an integer number (402280800).

Almost surely, 2^4145645456 is an apocalyptic number.

It is an amenable number.

4145645456 is a deficient number, since it is larger than the sum of its proper divisors (3899970544).

4145645456 is a wasteful number, since it uses less digits than its factorization.

4145645456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433166 (or 433160 counting only the distinct ones).

The product of its digits is 1152000, while the sum is 44.

The square root of 4145645456 is about 64386.6869469147. The cubic root of 4145645456 is about 1606.4383099366.

The spelling of 4145645456 in words is "four billion, one hundred forty-five million, six hundred forty-five thousand, four hundred fifty-six".