3663040556 has 12 divisors (see below), whose sum is σ = 7326081168. Its totient is φ = 1569874512.

The previous prime is 3663040543. The next prime is 3663040567. The reversal of 3663040556 is 6550403663.

It is a happy number.

3663040556 is an admirable number.

It is a super-2 number, since 2×3663040556² = 26835732229801578272, which contains 22 as substring.

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, 65411411 + ... + 65411466.

It is an arithmetic number, because the mean of its divisors is an integer number (610506764).

Almost surely, 2^3663040556 is an apocalyptic number.

It is an amenable number.

3663040556 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3663040556 is a wasteful number, since it uses less digits than its factorization.

3663040556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130822888 (or 130822886 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 38.

The square root of 3663040556 is about 60523.0580522829. The cubic root of 3663040556 is about 1541.5131801394.

The spelling of 3663040556 in words is "three billion, six hundred sixty-three million, forty thousand, five hundred fifty-six".