1063605656 has 16 divisors (see below), whose sum is σ = 2004704640. Its totient is φ = 529017760.

The previous prime is 1063605593. The next prime is 1063605661. The reversal of 1063605656 is 6565063601.

It is a super-2 number, since 2×1063605656² = 2262513982950380672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 346511 + ... + 349566.

It is an arithmetic number, because the mean of its divisors is an integer number (125294040).

Almost surely, 2^1063605656 is an apocalyptic number.

It is an amenable number.

1063605656 is a deficient number, since it is larger than the sum of its proper divisors (941098984).

1063605656 is a wasteful number, since it uses less digits than its factorization.

1063605656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696274 (or 696270 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 38.

The square root of 1063605656 is about 32612.9676049267. The cubic root of 1063605656 is about 1020.7676062209.

The spelling of 1063605656 in words is "one billion, sixty-three million, six hundred five thousand, six hundred fifty-six".