3666245656 has 32 divisors (see below), whose sum is σ = 7117023600. Its totient is φ = 1768475520.

The previous prime is 3666245651. The next prime is 3666245657. The reversal of 3666245656 is 6565426663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3666245651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 314671 + ... + 326113.

Almost surely, 2^3666245656 is an apocalyptic number.

It is an amenable number.

3666245656 is a deficient number, since it is larger than the sum of its proper divisors (3450777944).

3666245656 is a wasteful number, since it uses less digits than its factorization.

3666245656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12859 (or 12855 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 49.

The square root of 3666245656 is about 60549.5306009881. The cubic root of 3666245656 is about 1541.9626485985.

The spelling of 3666245656 in words is "three billion, six hundred sixty-six million, two hundred forty-five thousand, six hundred fifty-six".