4178745656 has 32 divisors (see below), whose sum is σ = 8299136880. Its totient is φ = 1965734400.

The previous prime is 4178745611. The next prime is 4178745667. The reversal of 4178745656 is 6565478714.

It is a junction number, because it is equal to n+sod(n) for n = 4178745598 and 4178745607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 575891 + ... + 583101.

Almost surely, 2^4178745656 is an apocalyptic number.

It is an amenable number.

4178745656 is a deficient number, since it is larger than the sum of its proper divisors (4120391224).

4178745656 is a wasteful number, since it uses less digits than its factorization.

4178745656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11495 (or 11491 counting only the distinct ones).

The product of its digits is 5644800, while the sum is 53.

The square root of 4178745656 is about 64643.2181748403. The cubic root of 4178745656 is about 1610.7024256424.

The spelling of 4178745656 in words is "four billion, one hundred seventy-eight million, seven hundred forty-five thousand, six hundred fifty-six".