6733945665 has 16 divisors (see below), whose sum is σ = 11971459200. Its totient is φ = 3591437616.

The previous prime is 6733945649. The next prime is 6733945703. The reversal of 6733945665 is 5665493376.

6733945665 is a `hidden beast` number, since 6 + 73 + 3 + 9 + 4 + 566 + 5 = 666.

It is not a de Polignac number, because 6733945665 - 2⁴ = 6733945649 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24940405 + ... + 24940674.

It is an arithmetic number, because the mean of its divisors is an integer number (748216200).

Almost surely, 2^6733945665 is an apocalyptic number.

It is an amenable number.

6733945665 is a deficient number, since it is larger than the sum of its proper divisors (5237513535).

6733945665 is a wasteful number, since it uses less digits than its factorization.

6733945665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49881093 (or 49881087 counting only the distinct ones).

The product of its digits is 12247200, while the sum is 54.

The square root of 6733945665 is about 82060.6218901612. The cubic root of 6733945665 is about 1888.3820746878.

The spelling of 6733945665 in words is "six billion, seven hundred thirty-three million, nine hundred forty-five thousand, six hundred sixty-five".