7006665664 has 14 divisors (see below), whose sum is σ = 13903852304. Its totient is φ = 3503332800.

The previous prime is 7006665649. The next prime is 7006665749. The reversal of 7006665664 is 4665666007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54739512 + ... + 54739639.

Almost surely, 2^7006665664 is an apocalyptic number.

It is an amenable number.

7006665664 is a deficient number, since it is larger than the sum of its proper divisors (6897186640).

7006665664 is a wasteful number, since it uses less digits than its factorization.

7006665664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109479163 (or 109479153 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 46.

The square root of 7006665664 is about 83705.8281363968. The cubic root of 7006665664 is about 1913.5381785507.

The spelling of 7006665664 in words is "seven billion, six million, six hundred sixty-five thousand, six hundred sixty-four".