1063446656 has 16 divisors (see below), whose sum is σ = 2118585390. Its totient is φ = 531723264.

The previous prime is 1063446623. The next prime is 1063446667. The reversal of 1063446656 is 6566443601.

It can be written as a sum of positive squares in only one way, i.e., 625800256 + 437646400 = 25016^2 + 20920^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×1063446656² = 2261837580315164672, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4153961 + ... + 4154216.

Almost surely, 2^1063446656 is an apocalyptic number.

1063446656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1063446656 is a deficient number, since it is larger than the sum of its proper divisors (1055138734).

1063446656 is an frugal number, since it uses more digits than its factorization.

1063446656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8308191 (or 8308179 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 41.

The square root of 1063446656 is about 32610.5298331689. The cubic root of 1063446656 is about 1020.7167383274.

The spelling of 1063446656 in words is "one billion, sixty-three million, four hundred forty-six thousand, six hundred fifty-six".