4654645666 has 12 divisors (see below), whose sum is σ = 7674395526. Its totient is φ = 2115747920.

The previous prime is 4654645651. The next prime is 4654645703. The reversal of 4654645666 is 6665464564.

It can be written as a sum of positive squares in only one way, i.e., 4554225225 + 100420441 = 67485^2 + 10021^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9616795 + ... + 9617278.

Almost surely, 2^4654645666 is an apocalyptic number.

4654645666 is a deficient number, since it is larger than the sum of its proper divisors (3019749860).

4654645666 is a wasteful number, since it uses less digits than its factorization.

4654645666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19234097 (or 19234086 counting only the distinct ones).

The product of its digits is 12441600, while the sum is 52.

The square root of 4654645666 is about 68224.9636570075. The cubic root of 4654645666 is about 1669.6632002741.

The spelling of 4654645666 in words is "four billion, six hundred fifty-four million, six hundred forty-five thousand, six hundred sixty-six".